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Research methods and skills

Research methods and skills

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Question 63

Research Methods: The 'Dawn and Dusk' Study

Researchers conducted a laboratory experiment to investigate whether cognitive processing speed differs between "morning people" (Dawn types) and "evening people" (Dusk types) when tested at different times of the day.

To ensure internal validity, the researchers implemented several control measures, including:

  1. Control 1: Asking participants to self-report their caffeine and stimulant intake on a questionnaire prior to testing.
  2. Control 2: Using standard fluorescent ceiling lighting in a classroom with windows to keep the testing environment bright during both the 08:00 and 20:00 testing sessions.

Explain how to improve the effectiveness of the two controls used in the 'Dawn and Dusk' study.

[6]
Markscheme

Research methods and skills Questions

  1. A Level
  2. /Psychology
  3. /Research methods and skills

186 exam-style questions on Edexcel A Level Psychology Research methods and skills, covering Research methods and skills. Each one has a worked solution and a mark scheme showing where the marks go.

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