: Applications to the behavioral and social sciences
In this chapter, we describe and discuss a number of G theory applications set in the elds of education and psychology. The examples, which are simplied adaptations of real-life applications originally described in Bain and Pini (1996), serve to identify the different types of measurement challenges that can arise in practice and how the information provided by EduG can be used to address these challenges. Each example follows the same structure. After brie¢y describing the application, we identify the purpose of the G study. We then outline the three designs that guide the data analysis (observation, estimation, and measurement), before presenting the G study results. A general interpretation of the results is followed by a discussion of one or two issues that the particular application highlights. The chapter also covers some technical and methodological issues that need to be understood by practitioners if G theory is to be properly applied.