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Data handling and analysis

Data handling and analysis

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Question 76

A developmental psychologist conducted a study investigating age-related differences in hazard perception using a high-fidelity driving simulator. Participants' hazard perception skills raw scores were recorded (out of a maximum score of 25, where a higher score indicates better hazard perception).

When analyzing the data, the researcher wondered if there was a notable difference in driving simulation performance between younger and older demographic groups.

Results table of means and standard deviations for hazard perception scores

Younger Adults (18–25 years)Older Adults (65+ years)
Mean19.5012.30
SD1.853.95

Replication Data

In a replication of this study with a new sample of 15 younger adults and 15 older adults, the following raw hazard perception scores were obtained:

  • Younger adults' scores: 18, 21, 22, 19, 17, 20, 20, 19, 16, 23, 18, 19, 21, 18, 21
  • Older adults' scores: 12, 8, 15, 11, 7, 16, 13, 9, 18, 14, 10, 11, 15, 12, 14

Using the descriptive statistics provided in the results table, comment on the performances of the younger and older participants in this study.

[2]
Markscheme

Data handling and analysis Questions

  1. A Level
  2. /Psychology
  3. /Data handling and analysis

235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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