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Research methods and techniques

Research methods and techniques

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Question 142

A clinical psychologist investigates the effectiveness of a 6-week cognitive-behavioural therapy (CBT) programme on self-esteem. A group of 12 participants complete a self-esteem questionnaire (scored from 10 to 50, yielding ordinal data) both before starting the programme and immediately after completing it.

Which of the following is the most appropriate inferential statistical test to analyse whether self-esteem scores significantly changed?

A

Related ttt-test

B

Mann-Whitney UUU test

C

Chi-square test of association

D

Wilcoxon Signed Ranks Test

Markscheme

Research methods and techniques Questions

  1. A Level
  2. /Psychology
  3. /Research methods and techniques

644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.

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