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Question 66

An experiment was conducted to investigate the effect of sleep deprivation on memory recall. Four participants were tested under two conditions: after 8 hours of sleep and after 4 hours of sleep. The raw data is presented in the table below.

Table 1: Number of words forgotten in a recall task

Participant	Number of words forgotten after 8 hours of sleep	Number of words forgotten after 4 hours of sleep
P	3	7
Q	8	11
R	5	14
S	6	19

Calculate the mean number of words forgotten after 4 hours of sleep.

You must give your answer to one decimal place.

[1]

Markscheme

Research methods and skills Questions

A Level
Psychology
Research methods and skills

186 exam-style questions on Edexcel A Level Psychology Research methods and skills, covering Research methods and skills. Each one has a worked solution and a mark scheme showing where the marks go.

Research methods and skills

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Research methods and skills

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Question 66

Table 1: Number of words forgotten in a recall task

Participant	Number of words forgotten after 8 hours of sleep	Number of words forgotten after 4 hours of sleep
P	3	7
Q	8	11
R	5	14
S	6	19

Calculate the mean number of words forgotten after 4 hours of sleep.

You must give your answer to one decimal place.

[1]

Markscheme

Research methods and skills Questions

A Level
Psychology
Research methods and skills

186 exam-style questions on Edexcel A Level Psychology Research methods and skills, covering Research methods and skills. Each one has a worked solution and a mark scheme showing where the marks go.