Explain how demand characteristics could lower the internal validity of Bandura et al.’s (1961) study into the transmission of aggression.
152 exam-style questions on OCR A Level Psychology External influences on children's behaviour, covering Bandura et al. (1961): Transmission of aggression and Chaney et al. (2004): Funhaller study. Each one has a worked solution and a mark scheme showing where the marks go.