A researcher uses a repeated measures design to investigate whether body position affects performance on a digit-symbol matching task. Participants use a key to write the correct digit beside each symbol. The same 24 adults complete both conditions in the order shown, with a five-minute gap between them. Each condition uses a different 60-item worksheet matched for difficulty.
| Condition | Order | Mean number of correct matches in 12 minutes |
|---|---|---|
| Seated | 1 | 48 |
| Standing | 2 | 40 |
Using the results, outline one change the researcher could make to reduce the effect of the order of the conditions.
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.