What you need to do is look at different pieces of evidence and assess how good the evidence is. For example, you could consider that Cameron was able to describe his house and the dog etc. Does this prove that his story is true? How else might you explain it (other than a past-life experience)? Basically, is this evidence strong or not?

There might be some pieces of evidence that are stronger than others. For example, does the fact he could describe a white house really prove anything? There are loads of white houses – it could have been any old house that they found!

Have a go – the only way to improve is to try!