A psychologist investigates whether the amount of time Year 9 pupils spend reading for pleasure during one month is related to the number of books they finish during that month.
For each pupil, outline how the psychologist could collect one numerical measure of each co-variable.
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.