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Learner Resource 23Correlations activity
A researcher has conducted a correlational study to investigate the relationship between how good people think their memory is and how well they do on a memory test. The first variable was ‘self-rating of memory’ and was measured by asking people to rate their memory on a 10 point scale (where 1 = very poor and 10 = excellent). The second variable was ‘actual memory’ and this was measured by showing them a video of a minor road accident and asking them a series of 10 eye-witness questions.
Results were as follows:
Participant Number Self-rating of memory Score on memory test
1 3 5
2 4 6
3 5 4
4 8 8
5 9 7
6 10 9
7 7 6
8 7 8
9 5 6
10 6 7
Version 1 1 © OCR 2017
Research methods
1. Suggest an appropriate alternate hypothesis for this study
2. a) Sketch an appropriately labelled scattergraph displaying the results of this study.
b) Outline one finding that may be drawn from this data
Version 1 2 © OCR 2017
Research methods
3. Explain two weaknesses of this correlational study
Version 1 3 © OCR 2017
Research methods
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