Evaluating Your Measurement Tool Assignment 5

Evaluating Your Measurement Tool
Assignment 5
Evaluating Your Measurement Tool Assignment 5
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 make contact through
the school systems to gather your information. Discuss at least
one factor that might affect the feasibility of this study

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Evaluating Your Measuring Instrument

Evaluating Your Measurement Tool (Assignment 5) Assignment 5

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 make contact through

the school systems to gather your information. Discuss at least

one factor that might affect the feasibility