ERIC Number: ED471347
Record Type: Non-Journal
Publication Date: 2002-Nov
Reference Count: N/A
Post-Hoc Power: A Concept Whose Time Has Come.
Onwuegbuzie, Anthony J.; Leech, Nancy L.
This paper advocates the use of post-hoc power analyses. First, a history and definition of statistical power are provided. Second, reasons for the nonuse of a priori power analyses are presented. Post-hoc power is defined and its usefulness delineated. Fourth, a heuristic example is provided to illustrate how post-hoc power can help rule in/out rival explanations in the presence of statistically nonsignificant findings. (Contains 1 figure and 92 references.) (Author/SLD)
Publication Type: Reports - Descriptive; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A