ABSTRACT

As mentioned in the previous chapter, there are numerous variations, extensions, and elaborations

of the one-way analysis of variance technique. In this chapter, we discuss one such technique, analysis of

covariance, which can be used to improve research design efficiency by adjusting the effect of variables

that are related to the dependent variable. We begin by examining a basic comparison between analysis of

variance and analysis of covariance, followed by the specific details of analysis of covariance.