Marijuana Dependence Questionnaire (MDQ)

The Marijuana Dependence Questionnaire was developed by our own Rebecca Gloria with Tim Baker to assess marijuana dependence. There are no pre-existing standardized measures for marijuana dependence. This 78-item questionnaire has the following response options:

0 = Never

1 = Rarely

2 = Sometimes

3 = Often

4 = Always

Some questions are reverse coded as noted in the scoring info document.


R Scoring Syntax file


Scoring info