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Oscar investigated whether there was a relationship between attitudes to recreational drug use and parts of the personality (id, ego and superego) according to Freud - AQA - A-Level Psychology - Question 7 - 2021 - Paper 1

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Oscar investigated whether there was a relationship between attitudes to recreational drug use and parts of the personality (id, ego and superego) according to Freud... show full transcript

Worked Solution & Example Answer:Oscar investigated whether there was a relationship between attitudes to recreational drug use and parts of the personality (id, ego and superego) according to Freud - AQA - A-Level Psychology - Question 7 - 2021 - Paper 1

Step 1

Complete Table 1

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Answer

Personality scoreRank 1Attitude to recreational drug use scoreRank 2d
2131.5-0.50.25
8697-11
546400
9743416
325200
6576-11
4.531124
7.5810800
1092-312144
978524
546400

Step 2

Calculate Spearman’s rank correlation coefficient

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Answer

To calculate Spearman’s rank correlation coefficient, use the formula:

rs=16d2n(n21)r_s = 1 - \frac{6 \sum d^2}{n(n^2 - 1)}

Given that:

  • The sum of d² is 172.5
  • n (the number of pairs) is 8,

Substituting into the formula yields:

rs=16×172.58(821)=11035560.792r_s = 1 - \frac{6 \times 172.5}{8(8^2 - 1)} = 1 - \frac{1035}{56} \approx 0.792

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