Repeated Measures ANOVA with Huynh and Feldt Epsilon Correction

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The test statistics is:


is the value of the th of observations in the th of groups, where has been 'centered' such that ,
is the average in the th group,
is the overall average,
is the calibrated weight,
, and
is computed using the Greenhouse-Geisser method.[1]

and is evaulated using the F-distribution with and degrees of freedom, where .

See also


  1. Huynh, H., & Feldt, L.S. (1976). Estimation of the Box correction for degrees of freedom from sample data in randomised block and split-plot designs. Journal of Educational Statistics, 1, 69-82.