Dr Aris is planning a 15-year longitudinal study to investigate the cognitive and emotional development of children whose mothers experienced postpartum psychosis (PPP) within the first year of birth.
Describe an appropriate sampling technique that Dr Aris could use to recruit participants for this study, explaining how it would be carried out and why it is appropriate.
82 exam-style questions on Edexcel A Level Psychology Research methods and skills, covering Research methods and skills. Each one has a worked solution and a mark scheme showing where the marks go.