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EnglandPsychologyQuick questions

Component 1: Research methods - Descriptive and inferential statistics

Quick questions on Descriptive and inferential statistics - OCR A-Level Psychology research methods

4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

what is the level of measurement (nominal, ordinal or interval)?
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The five OCR tests are the sign test (difference, related, nominal), Wilcoxon (difference, related, ordinal), Mann-Whitney U (difference, unrelated, ordinal), chi-square (χ2\chi^2, difference or association, unrelated, nominal) and Spearman's rho (correlation, ordinal). :::
What is q1?
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Name and justify the inferential test for ordinal data from a repeated measures design testing a difference. [3 marks]
What is q2?
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Explain what is meant by a Type 1 error. [2 marks]
What is q3?
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A researcher uses p0.01p \leq 0.01 rather than p0.05p \leq 0.05. Explain one effect of this choice. [3 marks]

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