Dr Vance conducted an observational study recording the number of verbal aggression incidents initiated by individual offenders in a rehabilitation facility over a six-month period. Dr Vance decided to use the median rather than the mean as the measure of central tendency for this data.
Explain why Dr Vance used the median instead of the mean in this study.
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.