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Data recording, analysis and presentation

Data recording, analysis and presentation

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Question 81

A psychologist records the self-reported anxiety scores (on a scale from 1 to 100) of seven students before an exam. The sorted data are:

34,45,48,52,55,61,68 34, 45, 48, 52, 55, 61, 68 34,45,48,52,55,61,68

Upon verifying the raw data, the researcher finds that the lowest score was recorded incorrectly as 34 instead of 14. If this data recording error is corrected to 14, how will this affect the range and the standard deviation of the dataset?

A

The range increases, but the standard deviation decreases.

B

The range remains unchanged, but the standard deviation increases.

C

The range increases, and the standard deviation increases.

D

The range increases, but the standard deviation remains unchanged.

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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