Explain how the self-selection method of recruiting participants in Milgram's (1963) obedience study created a sampling bias, and state how this affects the generalisability of the results.
128 exam-style questions on OCR A Level Psychology Responses to people in authority, covering Milgram (1963): Obedience and Bocchiaro et al. (2012): Disobedience and whistle-blowing. Each one has a worked solution and a mark scheme showing where the marks go.