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7.3 Analysing Research

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Question 46

A psychologist recorded the scores of seven participants on an emotion-recognition test marked out of 20.

ParticipantRecorded score
18
29
311
412
513
615
741

The psychologist reported a range of 33 marks. A check of the records showed that participant 7 scored 14 marks, not 41 marks.

a.

Calculate the range after participant 7's score is corrected.

[1]
b.

Explain why correcting this one score substantially reduces the range.

[2]
Markscheme

7.3 Analysing Research Questions

  1. GCSE
  2. /Psychology
  3. /7.3 Analysing Research

173 exam-style questions on OCR GCSE Psychology 7.3 Analysing Research, covering 7.3.1 Types of Data, 7.3.2 Measures of central tendency, 7.3.3 Other descriptive statistics, 7.3.4 Tables, Charts and Graphs, 7.3.5 Reliability, 7.3.6 Validity and effects on validity, and 7.3.7 Sources of bias. Each one has a worked solution and a mark scheme showing where the marks go.

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