Statistical Power - People.stat.sfu.ca
Statistical Power - People.stat.sfu.ca
Statistical Power - People.stat.sfu.ca
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Back to the basics: !<br />
α: Probability of a false positive <br />
(detecting an effect that doesn’t exist)!<br />
β: Probability of a false negative <br />
(failure to detect an effect when it actually exists)!<br />
<strong>Power</strong>: 1 – β, <br />
Probability of correctly rejecting a null<br />
hypothesis.!<br />
Practi<strong>ca</strong>l definition: PROBABILITY of detecting <br />
an effect when the effect actually exists.!<br />
Background
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