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Scientific processes

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Question 220

A researcher investigated the effect of environmental noise on memory retrieval using a repeated measures design, where the same participants took part in both conditions.

  • In the first condition, participants studied and recalled a list of 15 words in a completely silent room.
  • In the second condition, participants studied and recalled a different list of 15 words of matched difficulty with upbeat background music playing.

The researcher recorded the number of words correctly recalled by each participant in each condition.

Table 1: Mean number of words recalled and standard deviations

Silent conditionBackground music condition
Mean11.28.4
Standard deviation2.11.4

Explain how using counterbalancing might improve the design of this study.

[2]

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