ABSTRACT
This chapter summarizes and integrates many of the concepts from the preceding chapters (especially Chapters 8 and 9), leading to the evaluation of the quality of the design and analysis of a quantitative study (i.e., the research validity of a whole study). Our evaluation framework uses several research validity rating scales adapted from those developed by Gliner and Morgan (2000) and Morgan, Gliner, and Harmon (1999, 2006). Here we discuss key concepts and present several gures and tables that provide the information needed to make a comprehensive evaluation of the research validity of an empirical quantitative study. The studies described brie¦y in Chapter 1 are evaluated using this expanded framework in Chapter 25.
