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Data handling and analysis

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Question 98

A psychologist investigated the effectiveness of two different group therapies for reducing anxiety. Option 1 was Cognitive Behavioural Therapy (CBT) and Option 2 was Mindfulness-Based Cognitive Therapy (MBCT). A sample of 30 participants was randomly allocated to one of the two therapies. Anxiety levels were measured out of 50 using a standardized clinical scale (where a higher score indicates greater anxiety severity) at the start of the 12-week course and again 3 months post-intervention.

Table 1: Median anxiety scores at the start and 3 months post-intervention

Median anxiety score for CBTMedian anxiety score for MBCT
At the start of the course38.538.0
3 months post-intervention19.026.5

What do the median values in Table 1 suggest? Justify your answer.

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Data handling and analysis Questions

  1. A Level
  2. /Psychology
  3. /Data handling and analysis

Practise AQA A Level Psychology Data handling and analysis with exam-style questions for A Level Psychology. 263 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank