Communication Research: Post Hoc Test

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Blog/hkimscil/2005-04 › 2013 › Imdb › ZTest › OpenWeb › PostHocTest

Post Hoc Test

$q = \displaystyle \frac {\text{the difference between any two means}}{\text{the standard error of the difference between any two means}}$

$q = \displaystyle \frac {\overline{X_i}-\overline{X_j}}{\text{se}}$

$se = \displaystyle \sqrt{ \frac {Var_{by error}}{n} }$
$se = \displaystyle \sqrt{ \frac {MS_{error}}{n} }$

cf.

$t = \displaystyle \frac {\text{the difference between any two means}}{\text{the standard error of the difference between the two means}}$

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