Jesper wanted to investigate the impact of post-event discussion on the accuracy of eyewitness testimony. He recruited 10 members of his local running club to watch a video of a physical altercation in a park. He then instructed them to discuss the event in pairs before individually completing a questionnaire about what they had witnessed.
Explain one improvement that could be made to Jesper's study.
Practise Edexcel A Level Psychology Content with exam-style questions for A Level Psychology. 1,059 questions covering Diagnosis of mental disorders (4 Ds), Classification systems (DSM and ICD), Schizophrenia and one other disorder, Treatments for the two disorders, Individual differences, and Developmental psychology, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
