Survey on Drug Abuse
Submit a description of data collection methods and measurement for your proposed study. Include information about the dependent and independent variables of interest, and describe methods for how data on these variables will be collected and measured.
Include identification and/or creation of appropriate data collection instruments, as well as information on how variables will be operationalized, measured, and/or scored. In addition, identify possible confounders and explain how information on those variables will be collected and measured.