For your work to be published, you need to have solid evidence, so you need to perform different experiments to prove that what you say is true, and that it couldn’t be something else. Hence why research can take so long.
Great question! Before I do any research I have to complete an ethics form, which is looked at by other scientists, to make sure that my research is being done properly and safely. I make sure that I use research techniques or equipment that have been proven to be reliable and good to use. Then when I run my interventions I have to make sure that I am doing everything properly and I do multiple tests on lots of different people to make sure that what I am doing is right!
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