Also, seeing as the exam is in one week, and therefore you don't have all day to find examples, I really recommend that you find one example on
how reality can be a falsely made. I say this because it is one of the most adaptable ideas in a context piece that we create our own realities, and it is a core idea behind Whose Reality?.
One of my favorites is the
Loftus and Palmer StudyA brief rundown of it:
It's a psychological experiment where they show a group of people a car collision. They then split the viewers into I think five groups and tell them they will act as an eyewitness in a court case. They are then asked what speed the cars were travelling at. However, the curveball was that each group received a different verb. One group was asked what speed were they going at when they 'collided', another group got 'contacted', and another 'smashed' and a couple other verbs. The average speeds guestimated by the groups was quite different.
You can use this to say that our memories can be manipulated or that there is no one reality.
Don't give this example away to too many people though!
