An educational psychologist conducts a study to test a new reading app. Before the study begins, she tells the pupils that the app is 'specially designed to help clever children read even faster'. During the post-study interview, the pupils report much higher enjoyment and effort than they actually experienced because they want to help the researcher confirm that the app works.
Which methodological issue is directly demonstrated by the pupils' behaviour in this scenario?
Social desirability bias
Investigator effects
Demand characteristics
Selection bias
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.