A psychologist studies memory in Year 9 pupils. Each pupil studies the same word list for either 30 seconds or 90 seconds. Afterwards, each pupil completes the same recognition task. The psychologist compares the pupils' performance in the two study-time conditions.
Give one numerical result that could be recorded for each pupil to measure performance on the recognition task.
Using your measure from part (a), state an alternative hypothesis for the psychologist's comparison.
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.