Significance alone is not enough.

Information and data vital for evaluating and/or replicating research are often absent from publications. Thirty-three research articles with findings based on results of t tests, F tests, or Pearson product-moment correlations were randomly selected from the Journal of Medical Education and examined for adequate research reporting. Effect size and power were found and analyzed when sufficient data were available. Nearly one-half of the studies did not report a sufficient amount of data; or, if satisfactorily reported, a number of statistical tests were found to have low power values. The importance of effect size and power in research is presented along with guidelines for adequate research reporting.