In a laboratory, participants are allowed only four hours of sleep before completing a reaction-time task under controlled conditions.
Explain one strength and one weakness of using a laboratory experiment in this study.
64 exam-style questions on Edexcel GCSE Psychology 11.1 Designing psychological research, covering 11.1.1 Identify variables, 11.1.2 Controlling extraneous variables, 11.1.3 Write a null hypothesis, 11.1.4 Write an alternative hypothesis, 11.1.5 Methods of sampling, 11.1.6 Experimental and research designs, 11.1.7 Reliability and validity, 11.1.8 Ethical issues in research, 11.1.9 Laboratory experiment, 11.1.10 Field experiment, 11.1.11 Natural experiment, 11.1.12 Interview, 11.1.13 Questionnaire, 11.1.14 Correlation, 11.1.15 Case study, and 11.1.16 Observation. Each one has a worked solution and a mark scheme showing where the marks go.