Amara conducted a study to investigate the effectiveness of virtual reality (VR) exposure therapy for aerophobia (fear of flying). To measure success, she asked participants to complete a self-report questionnaire rating their anxiety on a scale of 1 to 10 before and after the therapy.
Explain one improvement that Amara could make to her study in terms of validity.
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.
