Abstract
Effect size and statistical significance. Currently, there is a growing interest in the study of the sensitive and validity of the statistical conclusions of experimental design. Although most of books on experimental design stress these issues, many students on applied psychology still do not take advantage of these advances, as can be deduced by low statistical power. The goal of this article is to examine the impact of the guidelines of the editorial Board of peer reviewed respect to the computation and interp re t ation of the measures of effect size as well as the values of statistical significance.
