Generally you try and weed your own belief out.
Birds are migrating further north, why?
Is climate change causing birds to migrate further north?
The first causes you to examine all potential reasons, while the later is incomplete.
Even kids know that your belief isn't your hypothesis. Just a few weeks ago at my sons science fair you could see projects like...
Which toothpaste is best?
Which detergent makes clothes whiter?
I'm sure the kid maybe thought Crest was best, but their project name wasn't... Is Crest the best toothpaste.
I don't think your #9 is right at all.