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Data recording, analysis and presentation

Data recording, analysis and presentation

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Question 236

A clinical psychologist measures the recovery times (in weeks) for 30 patients undergoing a new cognitive behavioural therapy (CBT) programme. Most patients recover quickly (within 3 to 5 weeks), but three patients take significantly longer (over 20 weeks), resulting in a strongly positively skewed distribution of recovery times. Which of the following correctly identifies the relationship between the measures of central tendency for this dataset?

A

Mode>Median>Mean\text{Mode} > \text{Median} > \text{Mean}Mode>Median>Mean

B

Mean>Median>Mode\text{Mean} > \text{Median} > \text{Mode}Mean>Median>Mode

C

Median>Mean>Mode\text{Median} > \text{Mean} > \text{Mode}Median>Mean>Mode

D

Mean=Median=Mode\text{Mean} = \text{Median} = \text{Mode}Mean=Median=Mode

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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