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Advises on statistical analysis that are often useful in practice (but are not always guaranteed to work).
45
votes
Rules of thumb for minimum sample size for multiple regression
I'm not a fan of simple formulas for generating minimum sample sizes.
At the very least, any formula should consider effect size and the questions of interest.
And the difference between either side o …
28
votes
Rules of thumb for "modern" statistics
If you're deciding between two ways of analysing your data, try it both ways and see if it makes a difference.
This is useful in many contexts:
To transform or not transform
Non-parametric or para …