In a study investigating aggressive behavior, researchers used a behavioral observation rating scale (yielding ordinal data) to compare two groups of primary school children.
The researchers used an inferential statistical test to see if there was a significant difference in aggression ratings between the two groups.
Explain why a Mann-Whitney test is an appropriate choice of statistical test in this situation and a Spearman's test is not.
121 exam-style questions on AQA A Level Psychology Inferential testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.