Dr. Vance is conducting an investigation into the effectiveness of a virtual-reality biofeedback program compared to a standard progressive muscle relaxation (PMR) technique on the salivary cortisol levels of chronic tension headache sufferers.
Compare matched pairs and repeated measures experimental designs as used in health psychology.
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.
