A developmental psychologist conducted a meta-analysis of 18 longitudinal studies to investigate the relationship between infant exposure to natural outdoor environments and subsequent cognitive attention span scores in middle childhood (ages 7–11).
Explain one methodological advantage of using a meta-analysis rather than a single longitudinal study for this investigation.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
