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Data recording, analysis and presentation

Data recording, analysis and presentation

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Question 154

A researcher compares two different teaching methods to see their effect on student exam performance (scored out of 50):

  • Group A (Traditional lectures): Mean score = 32.5, Standard Deviation = 1.2
  • Group B (Interactive workshops): Mean score = 34.0, Standard Deviation = 8.5

Which of the following statements is the most accurate interpretation of these data?

A

Interactive workshops produced more consistent test performance across participants than traditional lectures.

B

On average, participants who attended interactive workshops scored higher, but their scores were much more widely dispersed than those in the traditional lecture group.

C

Traditional lectures resulted in a higher average test score, but with a much lower level of variation among participants.

D

The standard deviation of 1.21.21.2 in Group A indicates that the difference between the highest and lowest score in this group was exactly 1.21.21.2.

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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