tag:blogger.com,1999:blog-5841910768079015534.post4159915983163604887..comments2024-03-18T08:28:01.624+00:00Comments on BishopBlog: Getting genetic effect sizes in perspectivedeevybeehttp://www.blogger.com/profile/15118040887173718391noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5841910768079015534.post-81434163421321582052012-04-21T14:24:39.006+01:002012-04-21T14:24:39.006+01:00Cohen's d is an example of a standardised effe...Cohen's <i>d</i> is an example of a <i>standardised</i> effect size - a particular kind of effect size. Sometimes effect sizes expressed in original units are more meaningful.<br /><br />For instance in a WM training study, number of items recalled in trained and control groups would probably be easier to interpret than would be <i>d</i>.<br /><br />Can be tricky for some phenotypes, I suppose, e.g., when assessed by questionnaire where the units are unclear.<br /><br />Baguley (2009) discusses these sorts of issues.<br /><br /><br /><br /><b>Refs</b><br /><br />Baguley, T. (2009). Standardized or simple effect size: What should be reported? British Journal of Psychology, 100, 603–617.Andyhttps://www.blogger.com/profile/10208461201183085397noreply@blogger.com