Dr Vance investigated the effectiveness of a novel rehabilitation programme by tracking the number of days before reoffending occurred in a cohort of former convicts. He chose to report the median number of days rather than the mean.
Explain why the median was a more appropriate measure of central tendency than the mean in this investigation.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, 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.
