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Research methods and skills

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Question 330

Figure 1: A frequency distribution curve of reaction times (ms) recorded during a cognitive attention task

Reaction Time (ms)Frequency
20015
30095
40065
50045
60030
70020
80012
9008
10005

A positively skewed frequency distribution curve for reaction times. The x-axis is labelled 'Reaction Time (ms)' and the y-axis is labelled 'Frequency'. The curve rises sharply to a peak at 300 ms and then slopes down, tailing off gradually to the right. Three vertical dashed lines are dropped to the x-axis, labelled from left to right: Label A is at the peak of the curve, Label B is situated slightly to the right of the peak, and Label C is located furthest to the right down the long tail of the distribution.

Identify the measure of central tendency shown at labels A, B and C on the frequency distribution curve for Dr. Patel's cognitive task data, shown in Figure 1.

Measure of central tendency shown at Label A: .....

Measure of central tendency shown at Label B: .....

Measure of central tendency shown at Label C: .....

[3]

Research methods and skills Questions

  1. A Level
  2. /Psychology
  3. /Research methods and skills

Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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