Abstract Effect Sizes (ES) are an increasingly important index used toquantify the degree of
practical significanceof study results. This paper gives anintroduction to the computation …

Sažetak The evidence based medicine paradigm demands scientific reliability, but modern
research seems to overlook it sometimes. The power analysis represents a way to show the …

This succinct and jargon-free introduction to effect sizes gives students and researchers the
tools they need to interpret the practical significance of their results. Using a class-tested …

Noted for its comprehensive coverage, this greatly expanded new edition now covers the
use of univariate and multivariate effect sizes. Many measures and estimators are reviewed …

In a previous article in this journal, we discussed the use and misuse of statistical testing in
scientific medical research articles (1), stating that significance testing should only be used …

Abstract Effect size is a simple way of quantifying the difference between two groups that has
many advantages over the use of tests of statistical significance alone. Effect size …

The role of measures of effect magnitude in the research enterprise is examined. Measures
of effect magnitude are used for four purposes:(a) to estimate the sample size required to …

It is regarded as best practice for psychologists to report effect size when disseminating
quantitative research findings. Reporting of effect size in the psychological literature is …

Sažetak Calculating the sample size in scientific studies is one of the critical issues as
regards the scientific contribution of the study. The sample size critically affects the …

The effect size (ES) is generally used in behavioral and biomedical research to refer to the
magnitude of an outcome result or to the strength of the relationship between two variables …