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