I'm also doing the AQA A Psychology, and so far we've done Research Methods and Perspectives, then we are half way through both Memory and Attachments. This is what my teachers have said are the key words.
Research methods- Aim, hypothesis, directional hypothesis, non-directional hypothesis, null hypothesis, independent variable, dependent variable, operationalising, lab, field, natural, control, extranious variable, ecological validity, mundane realism, validity, reliability, observation, behavioral checklist, behavioral categories, investigator/observer bias, participator effects, demand characteristics, 'screw you' effect, social desirability, case study, correlation, self-report techniques, target population, random sample, opportunity sample, volunteer sample, independent groups design, repeated measures design, matched pairs design, quantitative, measures of central tendency, measures of dispersion, pilot study, single blind technique, double blind technique, BPS code of ethics, deception, informed consent, confidentiality, right to withdraw, protection of participants, debrief, population validity, historical validity, qualitative, content analysis.
Attachments- Attachment, ethology, imprinting, critical period, sensitive period, innate, internal working model, monotrophy, social releasers.
Memory- Memory, capacity, duration, encoding, retrieve, recall, store, short term memory, long term memory, multi-store model, flashbulb memories, linear, pioneering, working memory model, central executive, phonological loop, visuo-spatial sketchpad, active processing, dual task memory, musical memory.
I'm not sure if all of them are actually necessary, but this is just what our teachers have had us learn.