A psychologist is investigating the effectiveness of a cognitive-behavioural anger management program in a young offender institution. She administers a newly designed questionnaire to the offenders to rate their own anger levels after completing the course. She also obtains the institution's official registers recording the number of behavioral infractions each offender committed prior to starting the program.
Referring to this study, explain the difference between primary and secondary data.
Practise AQA A Level Psychology Data handling and analysis with exam-style questions for A Level Psychology. 263 questions, matched to the AQA A Level Psychology (7182) 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.
