Summary
Contents
When using the analysis of variance (ANOVA) in an experimental design, how can the researcher determine whether to treat a factor as fixed or random? This book provides the reader with the criteria to make the distinction between fixed and random levels among factors, an important decision that directly reflects the purpose of the research. In addition to exploring the varied roles random factors can play in social research, the authors provide a discussion of the statistical analyses required with random factors and give an overview of computer-assisted analysis of random factor designs using SAS and SPSSX.
Designs with Random Factors
Designs with Random Factors
Random factors occur in many different types of designs, often in combination with one or more fixed factors. We have already considered three examples, representing simple versions of three broad types of designs:
- Those in which the factors of principal interest are random (as in Example 1, ...