Describe how Bandura et al. (1961) established reliability when assessing the children's pre-existing levels of aggression prior to the main experiment.
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.