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A New Way to Teach (or Compute) Pearson's r Without Reliance on Cross-Products
Journal article   Peer reviewed

A New Way to Teach (or Compute) Pearson's r Without Reliance on Cross-Products

Schuyler Huck, Bixiang Ren and Hongwei Yang
Teaching statistics, Vol.29(1), pp.13-16
02/2007
Web of Science ID: WOS:000211770600006

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Abstract

Many students have difficulty seeing the conceptual 'link' between bivariate data displayed in a scatterplot and the statistical summary of the relationship, r. This article shows how to teach (and compute) r such that each datum's 'direct' and 'indirect' influences are made apparent and used in a new formula for calculating Pearson's r.

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