Statistical Significance is Prerequisite in Study

Statistical significance: is it really that significant?

Statistical Literacy: Seeing How Statistical Significance Is Contextual

In observational studies, a statistically significant relationship can become statistically insignificant after taking into account the influence of a confounding factor. This is simply a result of the fact that in observational studies, all associations are contextual. Associations can change depending on what you take into account. First, a graph type is introduced that displays the influence...

Statistical significance and clinical significance.

Statistical and Practical Significance of Articles at Sports Biomechanics Conferences

Background. The importance of using statistical approaches has increased and became necessary for researchers and specialists in sports biomechanics because they need more objective and accurate methods to increase knowledge. Objectives. Evaluate the reality of using practical significance in the articles published in scientific conferences in the biomechanical sport. Methods. One hundred twe...

An illusion of hormesis in the Ames test: statistical significance is not equivalent to biological significance.

A recent report (Calabrese et al., Mutat. Res. 726 (2011) 91-97) concluded that an analysis of Ames test mutagenicity data provides evidence of hormesis in mutagenicity dose-response relationships. An examination of the data used in this study and the conclusions regarding hormesis reveal a number of concerns regarding the analyses and possible misinterpretations of the Salmonella data. The cla...