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Question 38

A developmental psychologist is planning to investigate how executive function changes across the lifespan. They are deciding between two research designs:

  • Design A: A longitudinal study tracking a single cohort of 100 participants from age 10 to age 70.
  • Design B: A cross-sectional study comparing seven different age groups (ages 10, 20, 30, 40, 50, 60, and 70) over a six-month period.

Explain one improvement that could be made to Design A and one improvement that could be made to Design B.

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Methods Questions

  1. A Level
  2. /Psychology
  3. /Methods

Practise Edexcel A Level Psychology Methods with exam-style questions for A Level Psychology. 638 questions, matched to the Edexcel A Level Psychology (9PS0) 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.

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