Download or read book The Essential Guide to Effect Sizes written by Paul D. Ellis and published by Cambridge University Press. This book was released on 2010-07-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 approach that includes numerous examples and step-by-step exercises, it introduces and explains three of the most important issues relating to the practical significance of research results: the reporting and interpretation of effect sizes (Part I), the analysis of statistical power (Part II), and the meta-analytic pooling of effect size estimates drawn from different studies (Part III). The book concludes with a handy list of recommendations for those actively engaged in or currently preparing research projects.