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COMMON MISTEAKS MISTAKES IN USING STATISTICS: Spotting and Avoiding Them


Suggestions for Researchers

Physicist and Nobel Laureate Richard Feynman provided some good advice for researchers:

The only way to have real success in science ... is to describe the evidence very carefully without regard to the way you feel it should be. If you have a theory, you must try to explain what's good and what's bad about it equally. In science, you learn a kind of standard integrity and honesty.
        What Do You Care What Other People Think? (1988) p. 217

There is one feature I notice that is generally missing in "cargo cult science"... It's a kind of scientific integrity, a principle of scientific thought that corresponds to a kind of utter honesty — a kind of leaning over backwards... For example, if you're doing an experiment, you should report everything that you think might make it invalid — not only what you think is right about it... Details that could throw doubt on your interpretation must be given, if you know them. ... If you make a theory, for example, and advertise it, or put it out, then you must also put down all the facts that disagree with it, as well as those that agree with it. ... In summary, the idea is to try to give all of the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another. ... The first principle is that yoiu must not fool yourself -- and you are the easist person to fool. So you have to be very careful about that.

    "Cargo Cult Science", adapted from a commencement address given at Caltech (1974)