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Research methods and techniques

Research methods and techniques

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Question 98

A researcher is investigating whether a mindfulness app reduces anxiety levels. They measure anxiety scores (measured on an ordinal scale) in a group of 12 participants before and after a two-week intervention. To analyze the data, they calculate the difference between the two scores for each participant, rank these differences by their absolute value, sum the ranks for positive and negative differences separately, and identify the smaller sum to determine their test statistic.

Which statistical test is the researcher conducting?

A

Mann-Whitney U test

B

Wilcoxon Signed Ranks test

C

Spearman's Rho

D

Sign 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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