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Data recording, analysis and presentation

Data recording, analysis and presentation

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Question 295

A researcher investigates the factors affecting memory recall in older adults. She calculates the correlation coefficient (rrr) between four different pairs of variables:

  • Hours of sleep and word recall score (r=+0.74r = +0.74r=+0.74)
  • Daily caffeine intake and reaction time (r=−0.89r = -0.89r=−0.89)
  • Level of self-reported anxiety and working memory capacity (r=−0.12r = -0.12r=−0.12)
  • Age of participant and recall accuracy (r=+0.81r = +0.81r=+0.81)

Which of these relationships is the strongest?

A

Daily caffeine intake and reaction time (r=−0.89r = -0.89r=−0.89)

B

Age of participant and recall accuracy (r=+0.81r = +0.81r=+0.81)

C

Hours of sleep and word recall score (r=+0.74r = +0.74r=+0.74)

D

Level of self-reported anxiety and working memory capacity (r=−0.12r = -0.12r=−0.12)

Markscheme

Data recording, analysis and presentation Questions

  1. A Level
  2. /Psychology
  3. /Data recording, analysis and presentation

513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.

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