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Point-Biserial and Biserial Correlations - NCSS

NCSS Statistical Software 302-1 NCSS, LLC. All Rights Reserved. Chapter 302 Point- Biserial and Biserial Correlations Introduction This procedure calculates estimates, confidence intervals, and hypothesis tests for both the point- Biserial and the Biserial Correlations . The point- Biserial correlation is a special case of the product-moment correlation in which one variable is continuous and the other variable is binary (dichotomous). The categories of the binary variable do not have a natural ordering. For example, the binary variable gender does not have a natural ordering. That is, it does not matter whether the males are coded as a zero or a one.

Tests of Normality and Equal Variance ... The histograms and normal probability plots help you assess the viability of the assumption of normality within each group. Title: Point-Biserial and Biserial Correlations Author: NCSS, LLC Created Date: 12/30/2020 10:21:38 AM ...

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