Variable;General explanation;Coding
each;unique identifier for each comparison;
id;unique identifier publication;pubmed ID or DOI
exp;unique identifier for each experiment;(pubmed ID or DOI)+nesting element
author;authors;as downloaded from pubmed or webofscience
year;of publication;
journal;;as downloaded from pubmed or webofscience
species;;mice or rat
strainGrouped;strain as reported by publications;
origin;origin of the breeding animalss;"B=own breeding; M=purchased naïve parents; P=purchased pregnant dams"
sex;;"M=males; F=females"
ageWeek;age at the time of testing in weeks;
model;ELA model used;"I=isolation; LG=licking-and-grooming; LNB=limited nesting and bedding; M=maternal separation; MD=maternal deprivation"
mTimeStart;postnatal day begin ELA model;
mTimeEnd;postnatal day end ELA model;
mHoursAve;relevant of isolation, maternal separation/deprivation: hours of separation;
mCageGrouped;relevant of isolation, maternal separation/deprivation: cage of separation;"HC = homecage; NC = novel cage; notApplicable"
mLDGrouped;relevant of isolation, maternal separation/deprivation: phase circadian cycle during which ELA occurred;"D=dark; L=light; UP = unpredictable; notApplicable"
mRepetition;repetitiveness of ELA model;"C=chronic;O=one time; RP=repeated predictable; RUP=repeatedunpredictable; twice; unclear"
mControlGrouped;type of control group;"AFR=animal facility reared; split=split litter design; U=untouched"
hit2Grouped;presence or absence of multiple-hits;"1=yes; 0=no"
testAuthorGrouped;behavioral tests used;"E0M=elevated zero maze; EPM=elevated plus maze; FST=forced swim test; LDBox = light dark box; MWM=morris water maze; noveltyFeedDrink=novelty induced suppression of feeding and drinking; OC = object in context; OF= open field; OL = object in location; OR = object recognition; RIT = resident intruder test; socialOF= social open field. The other test names are self explanatory"
testLDGrouped;phase of the circadian cycle during which the test was performed;D=dark, L= light, NS = notSpecified
varAuthorGrouped;variables of the behavioral tests;"DI = discrimination index, 0h = without a memory component; Mem = memory. Names variables are self explanatory"
waterT;water temperature (for relevant tests);
waterTcate;categorization of water temperature;"noClass = not classifiable; notApplicable; nStress = non stressful; stressful"
freezingType;defines the timing and conditioning of the freezing response in various tests;
retentionGrouped;categorization of retention times. For numeric times, see R script on GitHub;"long = over night; short = within the same day; working = working memory"
directionGrouped;results at a systematic review level;"notRetrievable = not directly reported nor sufficient information to estimate; ns = not significant"
effectSizeCorrection;values were initially in quantiles - here they have already been converted!;1=yes
cut_nC;whether a correction on the amount of animals was necessary (same control group for multiple experimental groups);1=yes
n_notRetriev;amount of animals not reported in publication - here it was imputed! See methods paper for details;
nC;amount of animals in the control group;
meanC;mean of the control group;ATTENTION: if variable dataFrom = ruler, the values were measured with ruler for windows. The only standardized measure across all studies in Hedge's g (variable yi) and its sampling variance (vi)
sdC;standard deviation of the control group;ATTENTION: if variable dataFrom = ruler, the values were measured with ruler for windows. The only standardized measure across all studies in Hedge's g (variable yi) and its sampling variance (vi)
seC;standard error of the control group;ATTENTION: if variable dataFrom = ruler, the values were measured with ruler for windows. The only standardized measure across all studies in Hedge's g (variable yi) and its sampling variance (vi)
nE;amount of animals in the experimental group;
meanE;mean of the experimental group;ATTENTION: if variable dataFrom = ruler, the values were measured with ruler for windows. The only standardized measure across all studies in Hedge's g (variable yi) and its sampling variance (vi)
sdE;standard deviation of the experimental group;ATTENTION: if variable dataFrom = ruler, the values were measured with ruler for windows. The only standardized measure across all studies in Hedge's g (variable yi) and its sampling variance (vi)
seE;standard error of the experimental group;ATTENTION: if variable dataFrom = ruler, the values were measured with ruler for windows. The only standardized measure across all studies in Hedge's g (variable yi) and its sampling variance (vi)
dataFrom;where the summary statistics were gathered from;
seqGeneration;risk of bias assessment SYRCLE: sequence generation;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
baseline;risk of bias assessment SYRCLE: baseline characteristics;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
allocation;risk of bias assessment SYRCLE: allocation concealment;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
housing;risk of bias assessment SYRCLE: random housing;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
blindExp; risk of bias assessment SYRCLE: blinding experimenter;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
control;was the control group appropriate;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
outAss;risk of bias assessment SYRCLE: random outcome assessment;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
outBlind;risk of bias assessment SYRCLE: blinded outcome assessment;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
incData;risk of bias assessment SYRCLE: incomplete data adequately addressed;"Y = low risk of bias, N = high risk of bias; unclear = unclear risk of bias; C = computerized (considered low risk of bias)"
mTimeLength;duration of the ELA model (end day - start day) in days;
blindRand;studies blinded and randomized;"1=yes; 0=no"
bias;bias score - see methods;
anxiety;anxiety domain categorization;"1=yes; 0=no"
sLearning;memory after stressful learning domain categorization;"1=yes; 0=no"
nsLearning;memory after non-stressful learning domain categorization;"1=yes; 0=no"
social;social domain categorization;"1=yes; 0=no"
multiply;multiplications to have all effect sizes in the correct direction (already performed);
noMeta;categorization for only systematic review and not meta-analysis (see methods);"1=yes; 0=no"
domain;domain of categorization;
directionQual;results at a systematic review level after correction for directionality of effect size (multiply variable multiplication);
yi;effect size hedge's g;
vi;sampling variances;