Label number
Label number
Label number
Label number young person
Family number
Label number
First name young person
Today's Date
Date of birth of young person
Was there smoking in the living room during the sampling period?
Was smoking done in the young person's bedroom during the sampling period?
Were renovation or embellishment works carried out in your home during the sampling period? Think of painting, flooring, insulation, use of sealing products such as silicone or mastic, ...
Which renovation or embellishment works?
How was the young person's living room ventilated during the sampling period? Manual (opening windows or doors)
How was the young person's living room ventilated during the sampling period? Grilles in windows or doors
How was the young person's living room ventilated during the sampling period? Mechanical
How was the young person's bedroom ventilated during the sampling period? Manual (opening windows or doors)
How was the young person's bedroom ventilated during the sampling period? Grilles in windows or doors
How was the young person's bedroom ventilated during the sampling period? Mechanical
How often did you ventilate the living room during the sampling period by opening windows and/or exterior doors?
How often did you ventilate the young person's bedroom during the sampling period by opening windows and/or outside doors?
How often was the living room cleaned during the sampling period and how? Vacuuming
How often was the living room cleaned during the sampling period and how? Sweeping with brush
How often was the living room cleaned during the sampling period and how? Wipe with a dry cloth (e.g. swiffer)
How often was the living room cleaned during the sampling period and how? Brushing with water
How often was the young person's bedroom cleaned during the sampling period and how? Vacuuming
How often was the young person's bedroom cleaned during the sampling period and how? Sweeping with brush
How often was the young person's bedroom cleaned during the sampling period and how? Sweeping with a dry do (e.g. swiffer)
How often was the young person's bedroom cleaned during the sampling period and how? Brushing with water
Do you have any comments or suggestions about this questionnaire?
Label number
Label number
Today's Date
First name
Date of birth of young person
At birth, you were registered as (gender as registered on your birth certificate)
How do you see yourself? I see myself as a...
I see myself differently, namely...
In which finality do you take lessons?
In which field of study do you take lessons?
What other field of study?
What means of transport do you use to go to school? On foot
What means of transport do you use to go to school? Bicycle
What means of transport do you use to go to school? Moped
What means of transport do you use to go to school? Car
What means of transport do you use to go to school? Bus
What means of transport do you use to go to school? Train
What means of transport do you use to go to school? Tram
What means of transport do you use to go to school? Other
What other means of transport?
How long does this transfer take on average? In total, so there and back in minutes.
How many hours a week are you active on the computer/tablet/smartphone/game console?
How many hours a week do you watch TV?
How often do you come into a room where people smoke? Home
How often do you come into a room where people smoke? In other places
How many times a week are you actively involved in sports (such as football, cycling, etc.) so that you sweat or are out of breath?
How often do you spend your free time outside in nature or on sites with fallow land (e.g. youth movement, sports, working in the garden, etc.)?
How often do you do the following: Wash hands
How often do you do the following: brush your teeth
How often do you do the following: wash hair
How often do you do the following: take a bath/shower
How often do you do the following: change clothes
Do you sometimes bite your nails?
Have you had any wheezing or whistling in your chest at any time in the last 12 months?
Were you short of breath when this wheezing sound was present?
Have you had this wheezing or whistling when you didn't have a cold?
Have you woken up at any point in the last 12 months with a feeling of tightness in the chest (wheezing)?
Have you woken up at any point in the last 12 months due to shortness of breath?
Have you woken up at any point in the last 12 months due to a coughing fit?
Have you ever had asthma diagnosed by a doctor?
Have you had an asthma attack in the last 12 months?
Have you taken medication for asthma in the last 12 months? (puffers, aerosols, tablets, ...)
If so, which ones?
Did your biological father, mother or one of your biological siblings ever have asthma?
Do you have any form of nasal allergy, including hay fever?
Have you suffered from any form of nasal allergy in the last 12 months, including hay fever?
Have you taken medication for hay fever or nasal allergy in the last 12 months? (e.g. nasal sprays, tablets, drops, ...)
If so, which ones?
Did your biological father, mother or one of your biological siblings ever have hay fever or nasal allergy?
Do you suffer from eczema (skin rash: red skin, scabs, fluid blisters, ...)?
Have you taken any medication for eczema in the last 12 months?
If so, which ones?
Did or does your biological father, mother or one of your biological siblings suffer from eczema?
Have you ever had chest tightness or wheezing from being at school?
Have you ever gotten rid of a pet because (you thought you) were allergic to it?
Have you had any kind of allergy, itching or rash in the last 5 years after contact with foods (peanuts, chocolate, strawberries, tomatoes,...)?
Have you had any form of allergy, itching or rash after contact with metal (piercing, earring, metal jewelry,...) in the last 5 years?
Have you had any form of allergy, itching or rash in the last 5 years after contact with insect bites (strong swelling when bitten by e.g. mosquitoes, wasps)?
Have you had any form of allergy, itching or skin rash in the last 5 years after contact with (domestic) animals (cat, dog, rabbit, horse,...)?
Have you had any form of allergy, itching or rash in the last 5 years after contact with dust mites?
Have you had any form of allergy, itching or rash after contact with trees in the last 5 years (e.g. pollen from the birch, ash)?
Have you had any kind of allergy, itching or rash in the last 5 years after contact with grasses?
Have you had any form of allergy, itching or skin rash in the last 5 years after contact with medicines?
Have you had any form of allergy, itching or rash in the last 5 years after contact with care products (make-up, creams, perfume,...)?
Have you had any form of allergy, itching or skin rash in the last 5 years after contact with household and maintenance products (dishwashing liquid, washing powder, fabric softener, soap,...)?
How often have you suffered from these symptoms in the last three months? Problems with your eyes (itchy eyes, irritation of the eyes, watery eyes)
How often have you suffered from these symptoms in the last three months? Problems with your nose (dryness at the level of the nose, stuffy nose, runny nose, nosebleed)
How often have you suffered from these symptoms in the last three months? Problems with your throat (dry throat, hoarseness, irritation)
How often have you suffered from these symptoms in the last three months? Headache
How often have you suffered from these symptoms in the last three months? Memory problems
How often have you suffered from these symptoms in the last three months? Dizziness
How often have you suffered from these symptoms in the last three months? Tired, sleepy
How often have you suffered from these symptoms in the last three months? Feeling like you have a heavy head
I hardly feel like doing anything lately. Last 6 months
I haven't been feeling very well lately. Last 6 months
I haven't been sleeping very well lately. Last 6 months
If I am going to do something, I often think that it will fail anyway. Last 6 months
I often think that other young people don't like me.
Lately I've been thinking about annoying things that are going to happen. Last 6 months
I sometimes think that things will not go well for me later. Last 6 months
When something unpleasant happens, I often think it's because of me. Last 6 months
I try to be nice to others. I take their feelings into account. Last 6 months
I'm restless. I can't sit still for long. Last 6 months
I often have headaches, stomach aches or nausea.  Last 6 months
I easily share with others (candy, stationery, ...). Last 6 months
I get very angry and am often angry. Last 6 months
I'm quite on my own, I like to be alone and don't interfere with others. Last 6 months
I usually do what I'm told. Last 6 months
I worry a lot. Last 6 months
I help someone who has hurt themselves, is upset or feels sick. Last 6 months
I'm constantly wobbling or fidgeting. Last 6 months
I have at least 1 good friend. Last 6 months
I fight a lot. I manage to get other people to do what I want. Last 6 months
I am often unhappy, down, or in tears. Last 6 months
Other young people my age generally like me. Last 6 months
I am easily distracted, I find it difficult to concentrate. Last 6 months
I'm nervous in new situations. I easily lose my self-confidence. Last 6 months
I'm nice to younger kids. Last 6 months
I am often accused of lying or cheating. Last 6 months
Other children or young people bully or harass me. Last 6 months
I often offer to help others (parents, teachers, children). Last 6 months
I think before I act. Last 6 months
I take away things that are not mine, at home, at school or in other places. Last 6 months
I get along better with adults than with young people my age. Last 6 months
I'm afraid of a lot of things. I am easily anxious. Last 6 months
I finish what I'm doing. I can keep my attention well. Last 6 months
How many times during the past 4 weeks did you feel... Lively
How many times during the past 4 weeks did you feel... full of energy
How many times during the past 4 weeks did you feel... Exhausted
How many times during the past 4 weeks did you feel... tired
All things considered, you'd say you:
What would you say about your height growth?
What would you say about the growth of your body hair (hair in any other place except on your head, e.g. under the arms)?
Have you noticed any changes in your skin, e.g. pimples?
Has your voice already changed (e.g. heavier, skipping/breaking of the voice)?
Is hair starting to grow on your face?
Are your breasts already starting to grow?
Are you already menstruating?
Do you know in which month and year you first menstruated?
What month did you first menstruate?
What year did you first menstruate?
What applies to your menstrual cycle?
Before participating in this study, had you ever heard about lead or other heavy metals such as arsenic or cadmium? (otherwise we just talk about 'heavy metals')
How did you hear about heavy metals: Family and friends
Through which way did you already hear about heavy metals: The media (TV, radio, newspapers, news sites)
How did you hear about heavy metals: all media (Twitter, TikTok, Facebook, etc.)
How did you hear about heavy metals: school
How did you hear about heavy metals: municipality
Through which way did you already hear about heavy metals: Citizens' Movements/Action Groups
How did you hear about heavy metals: scientists
In what way did you already hear about heavy metals: other
What other?
How did you hear about heavy metals:none of the above
How would you rate your own knowledge about heavy metals on a scale of 1 to 10?
Is there a lot of talk about heavy metals in your area? (E.g. by family, friends, neighbours, at school, ...)
Do you know someone who has had his or her blood tested for the presence of lead or other heavy metals? Yes, myself
Do you know someone who has had his or her blood tested for the presence of lead or other heavy metals? Yes, family
Do you know someone who has had his or her blood tested for the presence of lead or other heavy metals?  Yes, friend(s) or acquaintance(s)
Do you know someone who has had his or her blood tested for the presence of lead or other heavy metals? No
To what extent are you worried about the following issues due to exposure to heavy metals? Your own health
To what extent are you worried about the following issues due to exposure to heavy metals? The health of others
To what extent are you worried about the following issues due to exposure to heavy metals? The environment and nature in your living environment
To what extent are you worried about the following issues due to exposure to heavy metals? The image of the municipality or the neighborhood in which you live
To what extent are you worried about the following issues due to exposure to heavy metals? The value of your home
What feelings do you get from the pollution of heavy metals in your living environment? It stresses me out
What feelings do you get from the pollution of heavy metals in your living environment? It scares me
What feelings do you get from the pollution of heavy metals in your living environment? It makes me angry
What feelings do you get from the pollution of heavy metals in your living environment? It makes me gloomy
What feelings do you get from the pollution of heavy metals in your living environment? It makes me sad
What feelings do you get from the pollution of heavy metals in your living environment? It makes me worry
What feelings do you get from the pollution of heavy metals in your living environment? I don't care
What feelings do you get from the pollution of heavy metals in your living environment? Other
What other feeling?
What feelings do you get from the pollution of heavy metals in your living environment? None of the above
What feelings do you get from the pollution of heavy metals in your living environment? I don't know
Do you or members of your family have health problems that you wonder if they are related to heavy metals?
What health complaints?
The statements below are more generally about the situation in Flanders. To what extent do you disagree or agree with these statements? Air, water and soil in Flanders are highly polluted
The statements below are more generally about the situation in Flanders. To what extent do you disagree or agree with these statements? Most environmental problems in Flanders are exaggerated
The statements below are more generally about the situation in Flanders. To what extent do you disagree or agree with these statements? I rarely worry about environmental pollution in Flanders
The statements below are more generally about the situation in Flanders. To what extent do you disagree or agree with these statements? All that talk about environmental pollution in Flanders makes people more worried than necessary
The statements below are more generally about the situation in Flanders. To what extent do you disagree or agree with these statements? We are now too concerned about the future of the environment and too little about prices and employment
The statements below are more generally about the situation in Flanders. To what extent do you disagree or agree with these statements? The state of the environment is a threat to my health
The statements below are more generally about the situation in Flanders. To what extent do you disagree or agree with these statements? People are too worried that progress will harm the environment
The statements below are more generally about the situation in Flanders. To what extent do you disagree or agree with these statements? As an individual, you can contribute to the protection of the environment
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? The local government (the municipality or province)
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? The Flemish or federal government (Belgium)?
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? European or international institutions
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? The Media (TV, radio, newspapers, news sites)
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? Social media (Twitter, TikTok, Facebook, etc.)
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? Scientists
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? Your doctor
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? Business and industry
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? Environmental organizations and citizens' movements
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? The school/teachers
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? Your parents
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? Family, friends or acquaintances
How much trust do you have in the authorities or persons below to inform you about environmental problems in your living environment? the Internet
What would you like to receive more information about heavy metals? How heavy metals get into my body
What would you like to receive more information about heavy metals? What the consequences are for my health
What would you like to receive more information about heavy metals? What the consequences are for the environment and nature in my living environment
What would you like to receive more information about heavy metals? What I can do to protect my health
What would you like to receive more information about heavy metals? What the government and polluters will do to improve the situation
What would you like to receive more information about heavy metals? I have enough information
What would you like to receive more information about heavy metals? Other
What else would you like to receive more information about?
To what extent are you satisfied with the neighborhood where you live?
To what extent do you think it is possible to solve the heavy metal pollution in your living environment?
To what extent are you willing to adjust your behavior in order to reduce your personal exposure to heavy metals? Example: wash your hands more often after playing outside, take off your shoes more often when you go inside, etc
Do you have a message for us? Write them down here:
Label number
First name young person
Today's Date
Date of birth of young person
How many chickens do you currently have?
How many years have you had these chickens on average?
How old are the chickens on average?
Where do these chickens come from? Home-grown
Where do these chickens come from? Bought from a grower/shop
Where do these chickens come from? Received from someone else
Where do these chickens come from? Old battery hens
Where do these chickens come from? Other
Where else do the chickens come from?
Do the chickens have access to the compost heap?
What food do the chickens get and how often? Purchased food
What food do the chickens get and how often? Grass in the run, grass clippings
What food do the chickens get and how often? Weeds
What food do the chickens get and how often? Bread
What food do the chickens get and how often? Vegetable or fruit waste from your own garden
What food do the chickens get and how often? Fruit or vegetable waste not from your own garden
What food do the chickens get and how often? Food scraps/table scraps
What food do the chickens get and how often? Meat
What food do the chickens get and how often? Frying fat, pan fat, sauces
What food do the chickens get and how often? Fish/shellfish waste
What food do the chickens get and how often? Eggshells
What food do the chickens get and how often? Other
What other food?
Where are the chickens usually fed?
What do you usually use as drinking water for the chickens?
What other drinking water?
How big (in m2) is the free-range space (outdoor space)?
What is the shape of the free-range space?
What other form?
How much area of this free-range area is covered with vegetation?
How old is the chicken coop approximately?
What bedding is used in the chicken coop? Wood chips, wood shavings, wood fiber
What bedding is used in the chicken coop? Sawdust
What bedding is used in the chicken coop? Beech chips
What bedding is used in the chicken coop? Straw
What bedding is used in the chicken coop? Sand
What bedding is used in the chicken coop? Other
What bedding is used in the chicken coop? I don't know
What other ground cover?
Do you have any comments or suggestions about this questionnaire?
Label number
Label number
Label number
Label number young person
What is the first name of the participating young person?
Today's Date
Gender at birth of the participating young person
Date of birth of the young person
Nationality of the participating young person at birth: Belgian
Nationality of the participating young person at birth: Dutch
Nationality of the participating young person at birth:French
Nationality of the participating young person at birth: German
Nationality of the participating young person at birth: Italian
Nationality of the participating young person at birth: Spanish
Nationality of the participating young person at birth: Portuguese
Nationality of the participating young person at birth: Polish
Nationality of the participating young person at birth: Turkish
Nationality of the participating young person at birth: Moroccan
Nationality of the participating young person at birth: I don't know
Nationality of the participating young person at birth: Other country
Which other country?
Current nationality of the participant: Belgian
Current nationality of the participant: Dutch
Current nationality of the participant: French
Current nationality of the participant: German
Current nationality of the participant: Italian
Current nationality of the participant: Spanish
Current nationality of the participant: Portuguese
Current nationality of the participant: Polish
Current nationality of the participant: Turkish
Current nationality of the participant: Moroccan
Current nationality of the participant: I don't know
Current nationality of the participant: Other country
Which other country
Has the participating young person ever participated in the semi-annual lead in blood finger?
How many children (0-14 years) currently make up the household?
How many children (15-18 years) currently make up the household?
How many adults, including yourself, are there in the household at the moment?
Who are the parents in this family? Parent 1 (parent who completes the questionnaire)
Which other person
Who are the parents in this family? Parent 2 (partner of the parent completing the questionnaire)
Which other person
What is your highest degree?
What other diploma?
What is your partner's highest degree obtained?
What other diploma?
What was your nationality at birth? Belgian
What was your nationality at birth? English
What was your nationality at birth? French
What was your nationality at birth? German
What was your nationality at birth? Italian
What was your nationality at birth? Spanish
What was your nationality at birth? Portuguese
What was your nationality at birth? Polish
What was your nationality at birth? Turkish
What was your nationality at birth? Moroccan
What was your nationality at birth? I don't know
What was your nationality at birth? Other country
Which other country?
What was the nationality of your partner at birth? Belgian
What was the nationality of your partner at birth? English
What was the nationality of your partner at birth? French
What was the nationality of your partner at birth? German
What was the nationality of your partner at birth? Italian
What was the nationality of your partner at birth? Spanish
What was the nationality of your partner at birth? Portuguese
What was the nationality of your partner at birth? Polish
What was the nationality of your partner at birth? Turkish
What was the nationality of your partner at birth? Moroccan
What was the nationality of your partner at birth? I don't know
What was the nationality of your partner at birth? Other country
Which other country?
What profession do you currently practice?
What profession does your partner currently practice?
Does a family member of the young person currently work at Umicore?
Which family member?
Since when
Is there another family member of the young person currently working at Umicore?
Which family member?
Since when
Is there another family member of the young person currently working at Umicore?
Which family member and since when?
Did a family member of the young person work at Umicore in the past?
Which family member?
Until when?
How long in total?
Did another family member of the young person work at Umicore in the past?
Which family member
Until when?
How long in total?
Did another family member of the young person work at Umicore in the past? (so not anymore)
Which family member? Also describe until when and how long in total?
How easy or difficult is it for you to make ends meet with the total income of your household per month?
Which category does your family's total net monthly income fall into?
What is the current address of the participating young person: street
What is the current address of the participating young person: house number (+ possibly bus number)
What is the current address of the participating young person: postcode
What is the current address of the participating young person: municipality
Since when? Month
Since when? Year
How often does the participating young person live at this current address?
Where does the participating young person still live? Street
Where does the participating young person still live? House number (+possibly bus number)
Where does the participating young person still live? Postal code
Where does the participating young person still live? Municipality
Since when? Month
Since when? Year
Has the young person lived at addresses other than the current address since birth?
What is the address of the previous place of residence (1)? Street
What is the address of the previous place of residence (1)? House number
What is the address of the previous place of residence (1)? Postal code
What is the address of the previous place of residence (1)? Municipality
In which period (year) did the young person live at this address (1)? Lived from (year)
In which period (year) did the young person live at this address (1)? Lived up to (years)
Did the young person live at more than 1 other address?
What is the address of the previous place of residence (2)? Street
What is the address of the previous place of residence (2)? House number
What is the address of the previous place of residence (2)? Postal code
What is the address of the previous place of residence (2)? Municipality
In which period (year) did the young person live at this address (2)? Lived from (year)
In which period (year) did the young person live at this address (2)? Lived up to (years)
Has the young person lived at more than 2 other addresses?
What is the address of the previous place of residence (3)? Street
What is the address of the previous place of residence (3)? House number
What is the address of the previous place of residence (3)? Postal code
What is the address of the previous place of residence (3)? Municipality
In which period (year) did the young person live at this address (3)? Lived from (year)
In which period (year) did the young person live at this address (3)? Lived up to (years)
Has the young person lived at more than 3 other addresses?
What is the address of the previous place of residence (4)? Street
What is the address of the previous place of residence (4)? House number
What is the address of the previous place of residence (4)? Postal code
What is the address of the previous place of residence (4)? Municipality
In which period (year) did the young person live at this address (4)? Lived from (year)
In which period (year) did the young person live at this address (4)? Lived up to (years)
Has the young person lived at more than 4 other addresses?
Add the addresses here:
What type of property do you live in
On which floor?
What is the year of construction of the house
Does the family own the house?
How many meters are there between your home and the nearest street? If you do not know the distance, enter 999.
Have there been any road works in the street where you live in the past 3 months?
Have you done or had renovation or embellishment work done in the past year that released a lot of dust?
Which renovation works?
What floor covering is there in the living room? Tiles
What floor covering is there in the living room? Carpet
What floor covering is there in the living room? Loose carpet(s)
What floor covering is there in the living room? Parquet
What floor covering is there in the living room? Plank floor
What floor covering is there in the living room? Other
What floor covering is there in the young person's bedroom? Tiles
What floor covering is there in the young person's bedroom? Carpet
What floor covering is there in the young person's bedroom? Loose carpet(s)
What floor covering is there in the young person's bedroom? Parquet
What floor covering is there in the young person's bedroom? Plank floor
What floor covering is there in the young person's bedroom? Other
Have you changed anything about the decoration of your home to reduce the amount of dust? (e.g. carpet removed)
What did you do?
When did you do this (year)
How many times a week do you carry out the following activities: Dusting the living room with a dry cloth
How many times a week do you carry out the following activities: Removing dust in the living room with a damp cloth
How many times a week do you carry out the following activities: knock out the living room rug
How many times a week do you perform the following activities: sweeping or turning the living room?
How many times a week do you perform the following activities: vacuuming the living room
How many times a week do you perform the following activities: mopping living room
How many times a week do you perform the following activities: scrubbing the living room, cleaning the carpet with shampoo
How many times a week do you perform the following activities: washing the windows of the living room
How many times a week do you perform the following activities: kitchen cleaning
How many times a week do you perform the following activities: bathroom cleaning
How many times a week do you carry out the following activities: sweeping the terrace
How many times a week do you carry out the following activities: Hose down the terrace
How often are the following products used indoors? Aroma diffusers
How often are the following products used indoors? Insect killers
How often are the following products used indoors? Cleaning products with bleaches
How often are the following products used indoors? Aerosols or sprays for carpet, clothing or shoe treatment
How often are the following products used indoors? Anti flea remedies for pets
How often are the following products used indoors? Material for making your own ceramics (e.g. pottery or modelling)
How often are the following products used indoors? Paint, glue, varnish
How often are the following products used indoors? Antifungal products
Do you use a stove (wood, gas, fuel oil,...) or a fireplace in your home?
Which stove or fireplace? stove on wood pellets
Which stove or fireplace? oil stove/oil heater
Stove/fireplace: gas stove (no decorative fireplaces)
Which stove or fireplace? wood stove
Which stove or fireplace? Fireplace
Which stove or fireplace? coal stove
Which stove or fireplace? Other
What other stove?
How often do you use this stove(s) or fireplace?
Do you ever burn outside, e.g. an open fire or a fire pit?
Are motor vehicles (e.g. car, moped) or other equipment with an internal combustion engine (e.g. lawnmower, chainsaw, etc.) parked in a garage or in another room in your home?
In what other room?
Is smoking allowed in the house?
In which rooms?
What is smoked?
What else is smoked?
Are there pets inside your home?
Which pets are present in your home? Cat(s)
Which pets are present in your home? Dog(s)
Which pets are present in your home? Other animals with fur
Which pets are present in your home? Birds
Which pets are present in your home? Other animals
What other pets?
How does the air exchange in the living room take place? Manual (opening windows and doors)
How does the air exchange in the living room take place? Grilles in windows or doors
How does the air exchange in the living room take place? Mechanical
How does the ventilation in the young person's bedroom take place?  Manual (opening windows and doors)
How does the ventilation in the young person's bedroom take place? Grilles in windows and doors
How does the ventilation in the young person's bedroom take place? Mechanical
How often is the mechanical ventilation system on in the living room? Months/year
How often is the mechanical ventilation system on in the young person's bedroom? Months/year
How often is the living room ventilated by opening windows and/or exterior doors?
How often is the young person's bedroom ventilated by opening windows and/or outside doors?
Are the following types of damp problems present in your home? A leaking roof
Are the following types of damp problems present in your home? Damp wall or floor
Are the following types of damp problems present in your home? Rotting framework
Are the following types of damp problems present in your home? Condensation droplets on the inside
Are the following types of damp problems present in your home? No moisture problems
Are the following types of damp problems present in your home? Other
What other forms of moisture problems?
Do you suffer from mold on walls, floors, ceilings, furniture or other places in your home?
Do you sometimes feel a draught in the house?
Where? (exterior door, living room windows, kitchen windows, bedroom windows, ...)
What material are the water pipes in the house made of?
What other material?
Do you have a garden and/or terrace?
What is present in your garden and/or terrace? Tiles
What is present in your garden and/or terrace? Grass
What is present in your garden and/or terrace? Vegetable garden
What is present in your garden and/or terrace? Bare ground
What is present in your garden and/or terrace? Other
What else is present?
Do you have a groundwater well?
How deep is this groundwater well?
Do you use the water from the groundwater well for: drinking
Do you use the water from the groundwater well for: Preparing (hot) meals (tea, coffee, soup,...)
Do you use the water from the groundwater well for: Food preparation (cooking, washing vegetables,...)
Do you use the water from the groundwater well for: dishwasher
Do you use the water from the groundwater well for: Personal hygiene (bathing, use at the sink, brushing teeth,...)
Do you use the water from the groundwater well for: Watering the vegetable garden
Do you use the water from the groundwater well for: Other
What else was it used for?
What footwear does your family mainly wear in the home?
Do the family members wipe their feet or shoes (on a doormat, among other things) when entering the house?
Were there any complications during pregnancy that necessitated hospitalization or rest?
What complications were these about? Preeclampsia
What complications were these about? High blood pressure in the mother
What complications were these about? Gestational diabetes
What complications were these about? Physical overload (fatigue, persistent muscle pain,...)
What complications were these about? Stress in the mother
What complications were these about? Other
What other complication(s)?
Did the biological mother have to take antibiotics during pregnancy?
Did the birth mother smoke during pregnancy?
How many cigarettes did the biological mother smoke on average per day?
Did the biological mother drink alcoholic beverages (wine, aperitif, liqueur, beer, spirits) during pregnancy?
Indicate how often the birth mother drank alcohol:
What was the age of the biological mother at the birth of the young person? If you don't know this (anymore), enter 999.
The younger is from the biological mother it:
How many children?
Were there complications during childbirth that made the young person need acute care shortly after birth?
What complications were involved?
What was the birth weight of the young person
What was the birth length of the young person?
Was the young person born prematurely (before 37 weeks of gestation)?
What was the duration of the pregnancy? In weeks
Was the young person breastfed as a baby?
Did the biological mother have to take antibiotics during breastfeeding?
Has the young person had a serious lung or respiratory infection during the first 2 years of life? E.g. RSV, pneumonia, not false croup
Did the young person usually receive paracetamol as a fever reducer during the first 2 years of life? E.g. Perdolan, Dafalgan, Daro
Did the young person receive antibiotics during the first 2 years of life?
Has the young person been seriously ill for a long time in the first 2 years of life? E.g. reflux, RSV, kidney problems,...
Which disease?
Was there regular smoking in the presence of the young person during the first 2 years of life?
Did the young person regularly go to childcare, crèche or childminder during the first 2 years of life?
Did the young person regularly go to an indoor swimming pool during the first 2 years of life?
How often has the young person had a fever during the last 12 months?
Has the young person had any of the following infections in the last 12 months? Throat infection
Has the young person had any of the following infections in the last 12 months? Ear infection
Has the young person had any of the following infections in the last 12 months? Respiratory infection (bronchitis)
Has the young person had any of the following infections in the last 12 months? Lung infection
Has the young person had any of the following infections in the last 12 months? Bladder infection
Has the young person had any of the following infections in the last 12 months? Stomach or intestinal infection
Has the young person had any of the following infections in the last 12 months? Laryngitis or laryngeal infection
Has the young person had any of the following infections in the last 12 months? Nasal/sinus infection
Has the young person had any of the following infections in the last 12 months? COVID-19
Has the young person had any of the following infections in the last 12 months? Other infection
What other infection?
Has the young person ever been hospitalized due to an infection? Throat infection
Has the young person ever been hospitalized due to an infection? Ear infection
Has the young person ever been hospitalized due to an infection? Respiratory infection (bronchitis)
Has the young person ever been hospitalized due to an infection? Lung infection
Has the young person ever been hospitalized due to an infection? Bladder infection
Has the young person ever been hospitalized due to an infection? Stomach or intestinal infection
Has the young person ever been hospitalized due to an infection? Laryngitis or laryngeal infection
Has the young person ever been hospitalized due to an infection? Nasal/sinus infection
Has the young person ever been hospitalized due to an infection? COVID-19
Has the young person ever been hospitalized due to an infection? Another infection
What other infection?
Was the participating young person ever diagnosed by a doctor? Thyroid disorders
Was the participating young person ever diagnosed by a doctor?  Diabetes
Was the participating young person ever diagnosed by a doctor? Kidney disorders
Was the participating young person ever diagnosed by a doctor? ADHD
Was the participating young person ever diagnosed by a doctor? ASD
Was the participating young person ever diagnosed by a doctor? Allergy
Was the participating young person ever diagnosed by a doctor? Other
Was the participating young person ever diagnosed by a doctor? None of the above
What other diagnosis?
Are the participating young people taking medicines for thyroid disease?
Which medicine for thyroid disease?
Are the participating young people taking medicines for diabetes?
Which medicine for diabetes?
Are the participating young people taking medicines for kidney disease?
Which medicine for kidney disease?
Are the participating young people taking drugs for ADHD?
Which medicine for ADHD?
Are the participating young people taking medicines for ASD?
Which medicine for ASD?
Does the participating young person take medicines for allergy?
Which medicine for allergy?
Are the participating young people taking medicines for another condition or disorder?
Which medicine for another condition or disorder?
These questions are about asthma and allergy in general. Did the biological father, mother or one of the biological siblings of the young person ever have or has... asthma
These questions are about asthma and allergy in general. Did the biological father, mother or one of the biological siblings of the young person ever have or has... hay fever
These questions are about asthma and allergy in general. Did the biological father, mother or one of the biological siblings of the young person ever have or has... Eczema
Do the following chronic diseases occur in the biological family of the young person (mother, father, brothers or sisters)? Type 1 diabetes
Do the following chronic diseases occur in the biological family of the young person (mother, father, brothers or sisters)? Type 2 diabetes
Do the following chronic diseases occur in the biological family of the young person (mother, father, brothers or sisters)? Thyroid problems
Do the following chronic diseases occur in the biological family of the young person (mother, father, brothers or sisters)? Problems with the kidneys
Do the following chronic diseases occur in the biological family of the young person (mother, father, brothers or sisters)? Cardiovascular diseases, high blood pressure
Do the following chronic diseases occur in the biological family of the young person (mother, father, brothers or sisters)? Other
What other?
Has anyone in the young person's biological family (mother, father, siblings) been diagnosed with attention deficit/hyperactivity disorder (ADHD)?
Account number
Account number in the name of
Have the following tests been carried out at the current address in the past? Soil Test
Have the following tests been carried out at the current address in the past? Water test
Have the following tests been carried out at the current address in the past? Test fruit and vegetables from your own garden
Have the following tests been carried out at the current address in the past? Other
What other tests?
Have the following tests been carried out at the current address in the past? None of the above
Have the following tests been carried out at the current address in the past? I don't know
May we contact you for this in the future?
Do you have any comments or suggestions about this questionnaire?
Label number young person
Today's Date
Date of birth of young person
What is your first name
Do you smoke tobacco?
How much do you smoke on average (cigarettes/week)?
Have you smoked tobacco in the last 3 days?
Have you been in a room where tobacco was smoked in the past 3 days?
Do you smoke electronic cigarettes?
Have you smoked ('vaping') electronic cigarettes in the past 3 days?
Have you been in a room where electronic cigarettes were smoked ('vaping') in the past 3 days?
Do you smoke a hookah (shisha)?
Have you smoked a hookah (shisha) in the past 3 days?
Have you been in a room where a hookah (shisha) was smoked in the past few days?
Do you sometimes drink alcoholic beverages?
Have you ever drunk 6 or more glasses of (possibly different) alcoholic beverages in one day?
How many times have you drunk 6 or more glasses of (possibly different) alcoholic beverages in one day? 
Do you use drugs?
Which drugs?
On how many days did you do activities that require strenuous physical exertion such as aerobics, jogging, football during the past 7 days,...?
On how many days did you do activities that require moderate physical exertion such as cycling at a normal pace, light sports such as swimming, etc.?
How many minutes have you cycled in the past 3 days or have you walked along streets with heavy traffic? Make the sum over the 3 days. 
Have you been in a room (at home or somewhere else) with a burning fireplace, wood stove or coal stove (not a pellet stove) in the past 3 days? 
Have road works been carried out in the street of the house in the past 14 days?
Have you eaten fish or seafood in the past 3 days? Also think of crab salad, canned fish,...
Have you eaten rice in the past 3 days? 
Have you eaten fruit or vegetables from your own garden in the past 3 days?
Which vegetables or fruit?
Have you eaten eggs from your own chickens in the past few days?
How do you assess your general state of health? 
Have you used vitamin or mineral supplements in the past 14 days?
Which brand of vitamin or mineral supplements?
Have you been taking omega-3 fatty acid supplements in the past 14 days?
What brand of omega-3 fatty acid supplements?
Have you been ill in the past 14 days?  
Which disease?
Have you used medicines or homeopathic remedies in the past 14 days? 
Which medicines or homeopathic remedies?
Have you had a fever in the past 14 days?
Have you had a respiratory infection in the past 14 days? (e.g. nose, throat, ears, lungs, Covid-19)
Have you had another infection in the past 14 days?
What other infection?
Are you currently on a growth hormone treatment?
Are you currently undergoing chemotherapy treatment?
Are you currently pregnant?
Do you have any comments or suggestions about this questionnaire?
Label number
Date of investigation
Date of birth of the participant
Age of the participant
Gender of the participant
Was the young person's questionnaire completed and returned?
Was the parents' questionnaire completed and returned?
Has the feeding questionnaire been completed and returned?
Has the recent exposure questionnaire been completed and returned?
Systolic blood pressure 1
Diastolic Blood Pressure 1
Heart rate 1
Systolic Blood Pressure 2
Diastolic Blood Pressure 2
Heart rate 2
Systolic blood pressure 3
Diastolic Blood Pressure 3
Heart rate 3
Systolic Blood Pressure 4
Diastolic Blood Pressure 4
Heart rate 4
Systolic blood pressure 5
Diastolic Blood Pressure 5
Heart rate 5
Height of participant (cm) on examination
Weight (kg) participant on study
Abdominal circumference (cm) of the participant
Hip circumference (cm) of the participant
Participant's breath test (NO)
Participant's breath test (FOT)
NES and Stroop testing of the participant
Time of blood sampling
Time of blood sampling
Trace metal tube purchased?
Serum tube taken?
How many serum tubes are not fully filled?
Tempus tube purchased?
Blood sample present and complete?
Biobank blood sample present and complete?
Did the participant provide a urine sample?
Time of urine sample (hours)
Time of urine sample (minutes)
Time of last pee (hours)
Time of last pee (minutes)
Urine sample present and complete?
Biobank urine sample present and complete?
Is the participant fasting at the time of the study?
Time of last meal before the study (hour)
Time of the last meal before the study (min)
Nature of the meal? Drink: .......
Nature of the meal? Snack: .......
Nature of the meal? Meal: .......
Comments on the investigation
Number of participants in family
Family number
Label number of other family member
Label number
Label number
Label number
Label number young person
Today's Date
What is your first name
What is your date of birth
At birth, you were identified as
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: eggs
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in, think about the past 12 months: organ meats
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: meat with a hot meal
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: wild
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think of the past 12 months: charcuterie
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: canned fish
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: smoked fish
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: fish with a hot meal
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think of the past 12 months: shellfish
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: crustaceans
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: potatoes
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: vegetables
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: leafy greens
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: mushrooms
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: dried fruit
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: fresh fruit
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think of the past 12 months: bread
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: breakfast cereals and muesli
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: rice
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: nuts and seeds
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: cheese
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: milk and milk products
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: chocolate
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: tofu
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: other meat substitutes
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: algae
The following questions are about your normal diet. We would like to know how often you eat next foods. When filling in the form, think about the past 12 months: fast food
Are there certain eating habits that you often practice? No
Are there certain eating habits that you often practice? Yes, I don't eat meat
Are there certain eating habits that you often practice? Yes, I don't eat meat and fish
Are there certain eating habits that you often practice? Yes, I don't eat animal products
Are there certain eating habits that you often practice? Yes, I eat lactose-free
Are there certain eating habits that you often practice? Yes, I eat gluten-free
Are there certain eating habits that you often practice? Yes, I do IF
Are there certain eating habits that you often practice? Yes, other
What other eating habits?
What kind of water do you drink: water from the tap
What kind of water do you drink: bottled water
What kind of water do you drink: water from the groundwater well
Do you have a vegetable garden where you grow vegetables, fruit or other food?
Is this vegetable garden part of your garden?
What is the address of your vegetable garden?
How big is your vegetable garden?
What water do you use to water the vegetable garden? Water from rain barrel
What water do you use to water the vegetable garden? Water from groundwater well
What water do you use to water the vegetable garden? Tap water
What water do you use to water the vegetable garden? Other
What other water
Do you have a compost heap in the garden?
Do you use compost in the vegetable garden? Yes, purchased fertilizers
Do you use compost in the vegetable garden? Yes, from our own compost heap
Do you use compost in the vegetable garden? Yes, from our own dung heap
Do you use compost in the vegetable garden? No
Do you use phosphate fertilizers in the vegetable garden?
What do you do on the compost heap/in the compost bin and how often? Pruning waste
What do you do on the compost heap/in the compost bin and how often? Grass clippings
What do you do on the compost heap/in the compost bin and how often? Weeds
What do you do on the compost heap/in the compost bin and how often? Bread
What do you do on the compost heap/in the compost bin and how often? Vegetable or fruit waste from your own garden
What do you do on the compost heap/in the compost bin and how often? Fruit or vegetable waste not from your own garden
What do you do on the compost heap/in the compost bin and how often? Food scraps/table scraps
What do you do on the compost heap/in the compost bin and how often? Meat
What do you do on the compost heap/in the compost bin and how often? Frying fat, pan fat, sauces
What do you do on the compost heap/in the compost bin and how often? Waste from fish, crustaceans
What do you do on the compost heap/in the compost bin and how often? Eggshells
What do you do on the compost heap/in the compost bin and how often? Other
What other things do you do on the compost heap/in the compost bin?
If you use compost from your own compost bin/manure heap, is it first sieved before it is used in the vegetable garden?
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Small fruits
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Orchard fruit
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Greetings from our own garden
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Potatoes from your own garden
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Lettuce from your own garden
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Spinach from your own garden
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Other leafy greens
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Coal from your own garden
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Tomatoes from your own garden
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Cucumbers from your own garden
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Other fruit crops
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Bulbous plants
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Leeks
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Stem crops
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Root vegetables
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Beans
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Peas
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Other vegetables
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Nuts
How often did the young person eat fruit and vegetables from their own garden during the past 3 months? Honey
What other vegetables from your own garden?
Does the young person sometimes eat fruit and/or vegetables grown by others in the defined research area?
Has the young person ever eaten fruit and/or vegetables in the past 3 months that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area?
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Small fruits from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Orchard fruit from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Vegetables (total) from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Potatoes from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Lettuce from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Spinach from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Other leafy vegetables from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Coal from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Tomatoes from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Cucumbers from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Other fruit crops from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Bulbous plants from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Leeks from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Stem crops from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Tubers from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area?  Beans
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area?  Peas
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Other vegetables from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Notes from the demarcated zone
During the past 3 months, how often did the young person eat fruit and vegetables that you received or bought from friends, neighbours, family or local growers and that were grown in the demarcated research area? Honey from the demarcated zone
What other vegetables from the demarcated zone?
Does the young person eat eggs from their own chickens?
Does the young person sometimes eat eggs that you get from neighbours, friends or family who live in the demarcated research area?
How often did the eggs that the young person ate during the past 3 months come from your own chickens or were received/bought from neighbours, friends, family or local growers living in the demarcated research area?
How many eggs from chickens from the defined study area does the young person eat on average per week (including preparations such as cake and mayonnaise)?
Does the young person drink tea that was prepared in a traditional metal teapot?
Do you eat the younger dishes that were prepared in ceramic pots or bowls (e.g. tagine, ...)?
Do you have any comments or suggestions about this questionnaire?
Label number
Label number
Age of menarche
Label number
Years in the zone
Years outside the zone
Years unkempt
Label number
Label number
Label number
Label number young person
Respiratory resistance, at 5 Hz (cm H2O/L/s) (Rrs,5)
Airway resistance, at 19 Hz (cm H2O/L/s) (Rrs,19)
Difference R5-R19 (cm H2O/L/s)
Reactance airways, at 5 Hz (cm H2O/L/s) (Xrs,5)
The zone in which the participant lives
The distance to Umicore
The wind direction relative to Umicore
Arsenic in ambient air
Cadmium in ambient air
Lead in ambient air
Amount of incorrect tests
Mean value of correct tests
mean reaction time Continuous performance test
stdev of mean reaction time Continuous performance test
number of false-positives Continuous performance test (errors of commission)
number of non-responses Continuous performance test (errors or omission)
number of correct responses Continuous performance test
total latency Digit-symbol test
number of errors Digit-symbol test
number of correct responses Digit-symbol test
maximum forward span Digit span test
number of correct responses of forward span Digit span Test
maximum backward span Digit span test
number of correct responses of backward span Digit span Test
Average Latency Pattern Comparison Test
number of errors Pattern comparison test
number of correct responses Pattern comparison test