1 Matching Annotations
  1. Apr 2019
    1. Favorable changes occurred in z-scores for weight (one-tailed p < 0.04) for age and gender among children in the combined center- and home-based intervention compared to comparison children at posttest.

      Here is an example of a study that used an one-tailed test as opposed to a two-tailed test.

      Challenge for readers: Dig into the Methods section and find out why the researchers used an one-tailed test.