A developmental psychologist studied the impact of gender-stereotyped toy advertisements on children's play choices. There were 80 children recruited. The psychologist assigned the first 40 children on the school attendance sheet to Group A and assigned the remaining 40 children to Group B.
The psychologist showed children in Group A toy advertisements featuring highly traditional gender-role models over the course of a week.
The psychologist showed children in Group B, the control group, toy advertisements featuring neutral or counter-stereotypical models over the course of the same week.
One way of improving this study would be to use random allocation. Explain how random allocation could have been carried out in this study.
689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.