Dr. Mercer is designing a longitudinal study investigating the relationship between mothers diagnosed with post-traumatic stress disorder (PTSD) and the development of attachment security in their children. Describe a suitable longitudinal procedure for this study.
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.
