A psychologist told adult participants that the study was investigating the difficulty of puzzle sheets. The real aim was to investigate whether the expression of an observer affected the number of puzzles attempted. During the debrief, the psychologist revealed the real aim and asked participants what they had thought the study was about.
| Participants' response during the debrief | Mean number of puzzles attempted out of 12 |
|---|---|
| Guessed the real aim | 9.4 |
| Did not guess the real aim | 6.1 |
Using the results, explain one strength of debriefing in this study.
182 exam-style questions on OCR GCSE Psychology 7.1 Planning Research, covering 7.1.1 Hypotheses, 7.1.2 Variables, 7.1.3 Experimental Designs, 7.1.4 Populations and Sampling, 7.1.5 Ethical issues, and 7.1.6 Dealing with ethical issues and BPS Code. Each one has a worked solution and a mark scheme showing where the marks go.