Discussion 03.1: Evaluating Your Measurement Tool

MA3010 – Statistics for Health Professions SU20 B – Section D01

Discussion 03.1: Evaluating your Measurement Tool

Answer both of the following questions in your initial post:

1. Illness Prevalence:

The number of cases of illness in a population is referred to as its prevalence.  Comment on what a high illness prevalence does to the positive predictive value (PPV).  What about a low illness prevalence?

2. Study Feasibility:

In your research involving the BMI of fifth grade boys in the U.S., you will not only be collecting information on a child’s BMI, but also on his TV viewing habits, his eating habits, and his extracurricular activities.  You would like to m