25
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      The relative trustworthiness of inferential tests of the indirect effect in statistical mediation analysis: does method really matter?

      Psychological Science
      Confidence Intervals, Data Interpretation, Statistical, Humans, Monte Carlo Method, Statistics as Topic, standards

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          A content analysis of 2 years of Psychological Science articles reveals inconsistencies in how researchers make inferences about indirect effects when conducting a statistical mediation analysis. In this study, we examined the frequency with which popularly used tests disagree, whether the method an investigator uses makes a difference in the conclusion he or she will reach, and whether there is a most trustworthy test that can be recommended to balance practical and performance considerations. We found that tests agree much more frequently than they disagree, but disagreements are more common when an indirect effect exists than when it does not. We recommend the bias-corrected bootstrap confidence interval as the most trustworthy test if power is of utmost concern, although it can be slightly liberal in some circumstances. Investigators concerned about Type I errors should choose the Monte Carlo confidence interval or the distribution-of-the-product approach, which rarely disagree. The percentile bootstrap confidence interval is a good compromise test.

          Related collections

          Author and article information

          Journal
          23955356
          10.1177/0956797613480187

          Chemistry
          Confidence Intervals,Data Interpretation, Statistical,Humans,Monte Carlo Method,Statistics as Topic,standards

          Comments

          Comment on this article