In their study of obedience, disobedience, and whistle-blowing, Bocchiaro et al. (2012) recruited participants from VU University Amsterdam.
Explain one reason why this sample may lack population validity.
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.