Asked about Controls, confounds and pre-registration

What is a confound, and how do you control for it?

An answer that works

Something that changed alongside the variable you meant to test, such as extra compute or longer training. Control it by matching the baseline on everything except the one change, including parameter count, data and training time.

Reading an answer is not being able to give one. The section that teaches this is Controls, confounds and pre-registration, 4 hours of Experiment design.

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