A researcher runs an experiment to compare the effectiveness of two different coping-strategy workshops (Workshop A and Workshop B) for reducing anxiety in university students. The researcher uses a matched-pairs design where students are matched on their initial anxiety test scores.
Identify one other variable for which the researcher could have matched the students. Explain how this might have affected the change in anxiety levels if it was not controlled.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 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.
