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7.2 Doing Research

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Question 17

A study measures daily screen time and sleep duration in the same adolescents.

Explain why the two measures are co-variables rather than an IV and a DV, and identify one extraneous variable that could affect the relationship.

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Markscheme

7.2 Doing Research Questions

  1. GCSE
  2. /Psychology
  3. /7.2 Doing Research

139 exam-style questions on OCR GCSE Psychology 7.2 Doing Research, covering 7.2.1 Experiments, 7.2.2 Interviews, 7.2.3 Questionnaires (Surveys), 7.2.4 Observations, 7.2.5 Case Studies, and 7.2.6 Correlations. Each one has a worked solution and a mark scheme showing where the marks go.

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