4 Matching Annotations
  1. Jul 2020
  2. Jun 2020
  3. Mar 2020
    1. Factors that affect power

      Factors that affect power.

    2. Cohen’s recommendations:  Jacob Cohen has many well-known publications regarding issues of power and power analyses, including some recommendations about effect sizes that you can use when doing your power analysis.  Many researchers (including Cohen) consider the use of such recommendations as a last resort, when a thorough literature review has failed to reveal any useful numbers and a pilot study is either not possible or not feasible.  From Cohen (1988, pages 24-27):

      Recommendations from Cohen about choosing the effect size when doing a power analysis.