Hello :-)
For Part a)'s, fine details like sample size are not required unless the question is specifically 'Outline one piece of research into...'; more generic questions such as 'How could gender offer an explanation to turning to crime?', you would open with suggesting it's inferred males are more aggressive than females due to the hormone testerone. Dabbs et al researched this by collecting saliva samples of male inmates blah blah blah, found those with higher levels of testerone had been convicted for more violent crimes such as murder and were more likely to rebel against prison rules etc, then finish off the question by rounding back to your opening point to demonstrate wider knowledge and understanding.
My centre studies the Forensic and Health and Clinical option, and my teacher created a grid and we made some predictions on what could turn up. I'll list below what the research is into rather than researcher name as I know my teacher has swapped some evidence.
FORENSIC
TTC; Biology, gender.
MAC; Interviewing Suspects, false confessions.
MAC; Offender Profiling, UK bottom up approach (probably worth revising your case study too).
RAV; Reaching a Verdict, minority influence.
AAGV; Imprisonment, depression/suicide risk.
HEALTH AND CLINICAL
This was a little more difficult to predict but these were our best shots.
STRESS; Causes, control (lack of).
STRESS; Management, behavioural (social and cognitive also a possibility)
STRESS; Measures, combined OR physiological.
DYS. BEHAV; Explanations, behavioural.
DYS. BEHAV; Treatments, cognitive.
DISORDERS; Explanations, cognitive.
DISORDERS; Treatments, biological.
We know OCR can only question the same overall topic twice so three stress questions are not possible, yet if you have doubled up the evidence on causes and measures then shouldn't incur more revision.
Of course, these are only predictions so we can't just restrict our revision to these topics. I predicted the Behaviourist perspective in Section C of G542 last year so I may have some luck again?! Anyway guys, I really hope this was of some benefit :-)
P.S, what disorder has everyone specialised in? We are doing phobias :-)