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7.2 Doing Research

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Question 37

To study hand-washing behaviour, a psychologist installs a basin in an unused classroom. The 36 volunteers are divided into two groups. One group uses the basin with a mirror above it, while the other uses it with the mirror hidden behind a plain panel. Before each trial, the same quantity of washable paint is put on the volunteer's hands. The water temperature is fixed and the soap dispenser releases one measured dose. A sensor records the time from the tap being switched on to it being switched off.

Evaluate the use of a laboratory experiment in this study.

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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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