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Effect size as a supplement to statistical significance testing
Gašper Cankar & Boštjan Bajec
Full text (pdf) | Views: 29 | Written in Slovene. | Published: June 6, 2003
Abstract: Researchers in the field of psychology often face the situation that the statistical significance depends largely on the sample size and its statistical power. Effect size is a statistical measure that can offer some solutions for constructive research, since it can overcome the problems that are connected to the sample size. This article presents statistical significance testing we meet in psychology and the usage of smaller group of the effect size measures – measures of the standardised differences between means.
Keywords: effect size, statistical testing, statistical significance, practical significance, comparison of two means
