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A-LevelPsychologyResearch methods9990/21 · Oct/Nov 2019 · Q31 Mark

State one advantage of using the standard deviation compared to the range as a measure of spread.

  1. State one advantage of using the standard deviation compared to the range as a measure of spread.[1]

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2019). The mark or mark type is shown in brackets.

  1. [1] 1 mark for identifying an advantage It takes all the scores/data into account It isn't (so) affected by outliers/anomalous scores/big scores/small scores

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About this question

Topic
Research methods, A-Level Psychology (syllabus 9990). Structured question, 1 mark.
Source
A-Level Psychology, Oct/Nov 2019 Paper 2 Variant 1, question 3.

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