A psychologist wants to find out whether describing a puzzle as difficult changes adults' confidence ratings. To hide the aim, participants are told that the study is about how quickly adults solve puzzles. Each participant attempts the puzzle, gives a confidence rating from 1 to 5 and is then told that they may leave.
Explain when the psychologist should debrief each participant and why the debrief should take place at this point.
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.