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Understanding Correlation Matrices
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Understanding Correlation Matrices



February 2021 | 120 pages | SAGE Publications, Inc
Correlation matrices (along with their unstandardized counterparts, covariance matrices) underlie much of the statistical machinery in common use today. A correlation matrix is more than a matrix filled with correlation coefficients. The value of one coefficient in the matrix puts constraints on the values of the others, and this is a major theme of the volume. In Understanding Correlation Matrices authors Alexandria Hadd and Joseph Lee Rodgers illustrate their key points with a wide range of lively examples, including correlations between intelligence measured at different ages through adolescence; correlations between public health expenditures, health life expectancy, adult mortality, and other country characteristics; correlations between wellbeing and state-level vital statistics; correlations between the racial composition of cities and professional sports teams; and correlations between childbearing intentions and childbearing outcomes over the reproductive life course. 
 
Chapter 1: Introduction
 
Chapter 2: The Mathematics of Correlation Matrices
 
Chapter 3: Statistical Hypothesis Testing on Correlation Matrices
 
Chapter 4: Methods for Correlation/Covariance Matrices as the Input Data
 
Chapter 5: Graphing Correlation Matrices
 
Chapter 6: The Geometry of Correlation Matrices
 
Chapter 7: Conclusion

This volume provides a useful and interesting discussion about the importance and utility of the correlation matrix as a unified entity, beyond the pairwise correlations themselves. As such it provides readers with useful information about the foundations of several important statistical procedures and models.

William G. Jacoby
Michigan State University

This is an exceptional book that brings together information on a technique that has been around for over a century, the correlation. The authors challenge the reader to see correlations not as individuals but as a community that can be interpreted and acted on as such.

Rick Tivis
Idaho State University

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ISBN: 9781544341095
£22.99