A-LevelPsychologyResearch methods9990/23 · May/June 2018 · Q23 Marks

Identify the sampling technique used in the study by Milgram (obedience).

Mark scheme

Marking points from the official mark scheme (May/June 2018). The mark or mark type is shown in brackets.

[1] (a) volunteer/self-selected OR getting participants by asking for them
[2] (b) (it produces a) narrow sample; so is biased
[2] (b) not generalisable / will not be representative; because it is limited to the kinds of people who see the request / who respond
[2] (b) it is limited because only readers of the newspaper could possibly be participants; so it is not representative of people who did not read that newspaper (and who might differ in some way, e.g. educationally and therefore in their obedience level)

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Topic: Research methods, A-Level Psychology (syllabus 9990). Structured question, 3 marks.
Source: A-Level Psychology, May/June 2018 Paper 2 Variant 3, question 2.

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