dependence items were assessed. None of the four alcohol abuse items were measured. Subsequent surveys of wave 1 and all surveys for wave 2–4 included 11 DSM-V items which were modified to make them appropriate for the participants in accordance with IRB guidelines that the language be written at a 10th grade reading level. The highest pro-rated score across all available waves was selected and natural log-transformed (after adding 1), with data available for 6,082 participants.
