An educational psychologist, Dr. Aris, conducted an investigation into the relationship between a student's primary study method and their final exam outcome.
| Passed the exam | Failed the exam | |
|---|---|---|
| Group A: Used retrieval practice flashcards | 45 | 15 |
| Group B: Used rereading of notes | 24 | 36 |
State two reasons why Dr. Aris used a chi-squared test of association to analyse her data.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.