This book presents a technique for analyzing the effects of variables, groups, and treatments in both experimental and observational settings. Analysis of Covariance considers not only the main effects of one variable upon another, but also (like analysis of variance) the effects of groups of cases.

Introduction

Overview of Analysis of Covariance

Numerous situations arise in the social sciences where interest centers on the relationship or association between two variables or among a number of variables. For example, a political scientist may wish to contrast voting frequency by sex and/or income, or a sociologist may be concerned with the ...

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