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7.1 Planning Research

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Question 122

A year group of 300 pupils contains 150 girls and 150 boys. A psychologist selects a sample of 25 pupils from this year group to study attitudes to homework. The sample contains 20 girls.

Calculate the percentage of the sample who are girls, and use your answer to explain whether the sample is representative of the year group.

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Markscheme

7.1 Planning Research Questions

  1. GCSE
  2. /Psychology
  3. /7.1 Planning Research

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.

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