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5 Cards in this Set
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factor

in ANOVA, the variable (independent or quasiindependent) that designates the groups being compared


levels

the individual conditions or values that make up a factor


error term

for ANOVA, the denominator of the Fratio; provides a measure of the variance due to random, unsystematic differences; when the treatment effect is zero (H0 is true), the error term measures the same sources of variance as the numerator of the Fratio, so the value of the Fratio is expected to be nearly equal to 1.00


post hoc tests (posttests)

additional hypothesis tests that are done after an ANOVA to determine exactly which mean differences are significant and which are not


experimentwise alpha level

the overall probability of a Type I error that accumulates over a series of separate hypothesis tests; typically substantially greater than the value of the alpha used for any one of the individual tests
