Fersiynau electronig

Dogfennau

Dangosydd eitem ddigidol (DOI)

It is difficult to obtain adequate power to test a small effect size with a set criterion alpha of 0.05. Probably an inferential test will indicate non-statistical significance and not be published. Rarely, statistical significance will be obtained, and an exaggerated effect size calculated and reported. Accepting all inferential probabilities and associated effect sizes could solve exaggeration problems. Graphs, generated through Monte Carlo methods, are presented to illustrate this. The first graph presents effect sizes (Cohen's d) as lines from 1 to 0 with probabilities on the Y axis and the number of measures on the X axis. This graph shows effect sizes of .5 or less should yield non-significance with sample sizes below 120 measures. The other graphs show results with as many as 10 small sample size replications. There is a convergence of means with the effect size as sample size increases and measurement accuracy emerges.

Allweddeiriau

Iaith wreiddiolSaesneg
Tudalennau (o-i)309-316
Nifer y tudalennau8
CyfnodolynThe Journal of General Psychology
Cyfrol144
Rhif y cyfnodolyn4
Dyddiad ar-lein cynnar12 Hyd 2017
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - Tach 2017

Cyfanswm lawlrlwytho

Nid oes data ar gael
Gweld graff cysylltiadau