Historical and Conceptual Overview of Tukey’s Honestly Significant Difference Test Tukey’s Honestly Significant Difference Test, commonly referred to as Tukey’s HSD Test, represents a cornerstone in the field of post hoc multiple comparison procedures. Developed by the eminent American statistician John Tukey in 1949, this method was designed to address the specific needs of researchers […]
Introduction to the Least Significant Difference (LSD) Test The Least Significant Difference (LSD) test, often attributed to R. A. Fisher, is a fundamental statistical procedure employed extensively within quantitative research, particularly in fields such as psychology, medicine, and agricultural science. Defined primarily as a post-hoc test, its critical function is to facilitate pairwise comparisons between […]
Introduction and Definition of the Newman-Keuls Test (SNK) The Newman-Keuls test, frequently referred to as the Student-Newman-Keuls test or SNK test, is a specialized statistical procedure categorized as a post-hoc multiple comparison procedure. Its application is contingent upon the initial findings of an Analysis of Variance (ANOVA). Specifically, when an omnibus ANOVA F-test indicates that […]