ABSTRACT
Studies in the social sciences comparing two or more groups very often measure their participants on several criterion variables. The following are some examples:
A researcher is comparing two methods of teaching second-grade reading. On a posttest the researcher measures the participants on the following basic elements related to reading: syllabication, blending, sound discrimination, reading rate, and comprehension.
A social psychologist is testing the relative efficacy of three treatments on self-concept, and measures participants on academic, emotional, and social aspects of self-concept. Two different approaches to stress management are being compared.
The investigator employs a couple of paper-and-pencil measures of anxiety (say, the State-Trait Scale and the Subjective Stress Scale) and some physiological measures.
A researcher comparing two types of counseling (Rogerian and Adlerian) on client satisfaction and client self-acceptance.
A major part of this book involves the statistical analysis of several groups on a set of criterion measures simultaneously, that is, multivariate analysis of variance, the multivariate referring to the multiple dependent variables.