ABSTRACT

In this chapter, we continue our discussion of the analysis of variance (ANOVA) by considering models in which there is a random-effects factor, previously introduced in Chapter 11. These models include the one-factor and factorial designs, as well as repeated measures designs. As becomes evident, repeated measures designs are used when there is at least one factor where each individual is exposed to all levels of that factor. This factor is referred to as a repeated factor, for obvious reasons. This chapter is mostly concerned with one-and two-factor random-effects models, the two-factor mixed-effects model, and one-and two-factor repeated measures designs.