How Do Participants Deal with Questions if Asked to Rate Visual Dimensions of an Object?

Research Question: How do participants behave when asked to rate objects’
visual dimensions?
Approach: Qualitative Data Analysis
Method: 90 participants were asked to rate 11 objects located along a route of
1.1 km length and asked to explain their rating behaviour using a think-aloud
protocol.
Results: If asked to rate several objects, participants tend to stop reading the
questions as a whole. Moreover, when judging objects on visual dimensions
they make inconsistent use of local neighbourhoods.