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Scientific processes

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Question 228

A clinical psychologist wants to investigate whether a new digital mindfulness app reduces state anxiety levels compared to a standard guided-breathing worksheet.

To test this, they recruit 48 participants who report high daily stress levels. Participants are randomly allocated to one of two groups:

  • Group Alpha: There are 24 participants in this group. Each participant is placed individually in a quiet room and given 10 minutes to use the interactive digital mindfulness app on a tablet, after which they complete a standardised state anxiety questionnaire.
  • Group Beta: There are 24 participants in this group. Each participant is placed individually in a quiet room and given 10 minutes to read and follow a standard printed guided-breathing worksheet, after which they complete the identical standardised state anxiety questionnaire.

Identify the experimental design used in this study and outline one advantage of this experimental design.

Table 1: Total state anxiety scores across both groups

Group Alpha (Mindfulness app)Group Beta (Guided-breathing worksheet)
Total anxiety score432576
[3]

Scientific processes Questions

  1. A Level
  2. /Psychology
  3. /Scientific processes

Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 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