Question

Suppose you are asked to conduct a questionnaire study of the prevalence of marijuana use in a community where use of marijuana is legal.
Write three interview questions on marijuana use to assess the following measures of prevalence:

point prevalence

period prevalence (one-year time period)

lifetime prevalence

Next: To understand the context, or situation of point, period or lifetime prevalence, what qualitative questions do you think it would be important to ask? (at least two)

Answer 1

Answer:

1. Point prevalence:

Do you now use marijuana?

2. Period prevalence:

During the past 12 , did you use marijuana at least once?

3. Lifetime prevlence:

Have you ever used marijuana even just one time, in your entire life?

To understand the context, we can ask:

• When was the first time you use it?
• Have you used it continuously or not?

Reference:

Here is a questionnaire template: https://www.cdc.gov/brfss/questionnaires/pdf-ques/2016_brfss_questionnaire_final.pdf