ERIC Number: ED449222
Record Type: Non-Journal
Publication Date: 2001-Feb-1
Reference Count: N/A
Understanding What ANOVA Post Hoc Tests Are, Really.
Homack, Susan R.
Many people use post hoc tests but do not completely understand why regular t-tests are not used post hoc or exactly what these tests are doing. This paper makes a direct comparison of Tukey and Scheffe post hoc tests with regular t-tests conducted using a new testwise alpha to make clear that controlling experimentwise error through some kind of Bonferroni-type correction is the basic concept underlying post hoc methods. (Contains 11 references.) (Author/SLD)
Descriptors: Analysis of Variance
Publication Type: Reports - Descriptive; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A