Interrater reliability of the Supports Intensity Scale (SIS)

James R Thompson1, Marc J Tassé, Colleen A McLaughlin

  • 1Special Education, Illinois State University, Normal, IL 61790, USA. jrthomp@ilstu.edu

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Spearman's Rank Correlation Test01:20

Spearman's Rank Correlation Test

Spearman's rank correlation test, also known as Spearman's rho, is a nonparametric method for assessing the strength and direction of association between two variables. This test is particularly valuable when the data distribution is unknown or when the assumption of normality does not hold. Named after the English psychologist and statistician Dr. Charles Edward Spearman, it serves as the nonparametric counterpart to Pearson's correlation coefficient.
Spearman's test calculates correlation by...