A cognitive psychologist conducted an experiment to investigate the effects of sleep deprivation on problem-solving. A total sample of 120 participants was recruited. Two-fifths of the sample were assigned to the control group (Condition A), while the remaining participants were allocated to the sleep-deprived group (Condition B). To facilitate testing, the participants in Condition B were divided equally into 6 separate testing rooms.
Calculate the number of participants in each testing room (group) in Condition B.
235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.