By looking through the specification relevant to your course you can find out everything you need to know for the exam.

Psychology

AQA (A)

http://store.aqa.org.uk/qual/gce/pdf/AQA-2180-W-SP-10.PDF

AQA (B)

http://store.aqa.org.uk/qual/gce/pdf/AQA-2185-W-SP-10.PDF

OCR

http://www.ocr.org.uk/download/kd/ocr_9593_kd_gce_spec.pdf