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Data handling and analysis

Data handling and analysis

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Question 8

An occupational therapist investigated the effects of two sleep aids on deep sleep duration. Group P used a weighted blanket for 4 weeks, while Group Q used an aromatherapy diffuser for 4 weeks. A smart mattress tracker recorded the average nightly deep sleep duration (in minutes) for each participant. The therapist calculated measures of central tendency for each group, as shown in Table 1 below.

Table 1: Measures of central tendency for Group P and Group Q deep sleep durations (minutes)

Measure of central tendencyGroup PGroup Q
Mean112.582.4
Median112.091.0
Mode112.098.0

Using the data in Table 1, explain how the distribution of deep sleep durations for Group P differs from the distribution for Group Q.

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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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