I think it is a case of just looking around for relevant questions - though bear in mind, if the questions mention something you don't know, it may well be that someone else taught that section of evolutionary psych.
The difference this year is that it was geared a bit more towards the developmental stuff so you could relate them to each other and in other years, developmental hasn't even been taught, so there will be things that didn't come up this year that have before and vice versa.
But basically, if you know your stuff come the exam, then you should be able to answer any question on it anyway
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The shadow proves the sunshine...
...And I am a Sinner Goddess.
"This is my story. It'll go the way I want, or I'll end it here"
--Final Fantasy X