Dr. Brenda carried out an experiment to investigate the effect of a defendant's regional accent on mock jurors' perception of guilt. She selected her participants from individuals available in a university cafeteria during lunchtime on a Tuesday.
She played a five-minute audio recording of a police interview to two separate groups of participants:
Brenda then asked all participants to rate the likelihood that the defendant was guilty. This was measured on a scale of 1 to 7, where 1 represented 'definitely innocent' and 7 represented 'definitely guilty'.
Identify the sampling technique used by Brenda and explain one limitation of using this technique in this study.
Identify the independent variable (IV) and the dependent variable (DV) in this study.
120 exam-style questions on Edexcel A Level Psychology Content, covering Biological explanations of crime, Social explanations of crime, Cognitive and ethical interview techniques, Psychological formulation of offending, Cognitive-behavioural treatment for offenders, Biological treatment for offenders, Factors influencing eye-witness testimony, Factors influencing jury decision-making, Individual differences, and Developmental psychology. Each one has a worked solution and a mark scheme showing where the marks go.