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Psychology Model Answer: A Level SAM 1, Paper 3, Q6 - Twin Studies and Validity

3,794 views · Published 24 May 2017 · 5:08 · Indexed 18 October 2026

Channel: tutor2u · 2017 · Education

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In this video, we look at how to answer the following questions: Researchers used a test to measure the mathematical reasoning ability of pairs of identical and non-identical twins. If both members of a pair had a similar score on the test, they were said to be ‘concordant’. This type of study is known as a concordance study. Briefly explain the outcome of the study in relation to the nature-nurture debate. [2 marks]

Some ways of establishing validity involve the use of a statistical test. Outline how these researchers could have used a statistical test to establish concurrent validity of the mathematical reasoning ability test. [4 marks]

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