1. Chapter 16 Research Objectives Understand the various forms of nutrition research including epidemiological, historical, descriptive survey, analytical survey, and experimental. Be able to identify which type of research is being used to generate the findings you are observing Understand how to identify the quality of the research by examining values such as validity, reliability, accuracy and precision Know some of the insoluble and soluble problems that can be faced when doing research. Understand some of the limitations of Web based information on nutrition and supplementation.

2. Major Types of Research Used in Nutrition Research Epidemiological research Prospective (cohort) Retrospective Historical Descriptive survey Analytical survey Experimental Pre-test,post-test; crossover Clinical trials

3. Table 16-2, p. 555 Descriptive Survey

4. Fig. 16-2, p. 557 Analytical Survey Method

5. Fig. 16-3, p. 558 Experimental Method

6. Table 16-3, p. 559

7. Table 16-4, p. 559

8. Table 16-5, p. 560

9. Table 16-6, p. 560

10. How to Determine the Quality of the Research Validity – concerned with the effectiveness of the measuring instrument Face validity Criterion validity Internal or external validity Accuracy Reliability Precision

11. Table 16-8, p. 563

12. Table 16-7, p. 562