TY - JOUR AU - Yeaton, William H. AB - How the magnitude of an experimental effect may be measured has been a matter ofconcern for at least two decades. The phenomenon of effect size is still not well understood, and it cannot be inferred from statistical significance. In recent years various waysof assessing the amount of variance accounted for have been proposed as measures ofmagnitude of effect. Other writers have proposed rulesfor standardizing effect size, withthe interpretations of the measures depending largely on intuitions buttressed by somefurther general empirical norms. All the methods of assessing effect size have seriousflaws that limit their usefulness. The various statistical procedures for estimating varianceaccounted for are based on different statistical models and can produce rather sharplydiffering results, depending on the model employed. All the methods suffer from thelimitation that they reflect to too great an extent the particular characteristics of thestudy being reported and hence have limited generalizability. TI - Magnitudes of Experimental Effects in Social Science Research JF - Evaluation Review: A Journal of Applied Social Research DO - 10.1177/0193841X8200600501 DA - 1982-10-01 UR - https://www.deepdyve.com/lp/sage/magnitudes-of-experimental-effects-in-social-science-research-bX4HsKKcns SP - 579 EP - 600 VL - 6 IS - 5 DP - DeepDyve ER -