Includes bibliographical references (pages 88-89).

1. Introduction -- Overview of analysis of covariance -- Alternate problem perspectives with analysis of covariance -- 2. Applications of analysis of covariance -- Application one: Coerciveness and change -- Application two: Partitioning and perceived crowding in a public space -- Application three: Comparison of alternate teaching methods -- Application four: American occupational structure -- 3. Principal uses of analysis of covariance -- Increase precision of randomized experiments -- Remove bias due to nonrandom assignment of experimental test units -- When to use analysis of covariance in experimental settings -- Remove bias in observational studies -- Regression with multiple classifications -- 4. Statistical procedures for analysis of covariance for a one-way layout -- Introduction -- Covariance model -- Completely randomized design -- Testing [beta] -- Comparisons among means -- A priori orthogonal comparisons -- A posteriori nonorthogonal comparisons -- Numeric example for completely randomized design -- Geometric representation -- Alternate perspective of testing with analysis of covariance -- Other problem perspectives -- Analysis under second perspective -- Analysis under regression perspective -- 5. Analysis of covariance for more complex layouts -- Randomized complete block design -- Covariance model -- Testing [beta] -- Mean comparisons -- Numeric example for randomized complete block design -- Factorial design -- Covariance model -- Further considerations -- Testing [beta] -- Comparisons among means -- Numeric example for two-factor design with equal cell size -- Analysis with unequal cell sizes -- Other designs.