power
/ˈpaʊɝ/
the probability of correctly rejecting a false null hypothesis
power in a sentence
“We need a larger sample to achieve adequate statistical power.”
Origin of power
Latin potere to be able
Related Words
type I error
incorrectly rejecting a true null hypothesis (false positive)
type II error
failing to reject a false null hypothesis (false negative)
sample
a subset of a population selected for analysis
bias
systematic error that skews results in a particular direction
hypothesis testing
a procedure for deciding between competing claims about a population
null hypothesis
the default assumption that there is no effect or difference