| Enrollment | Baseline assessment and randomization |  | Follow-up | |||||
---|---|---|---|---|---|---|---|---|---|
 |  |  | Session 1 | Session 2 | Booster texts |  | |||
Timepoint | -t1 | t0 | t0 | t0 + 1w | t0 + 2w–5w | t0 + 1 m | t0 + 3 m | t0 + 6 m | t0 + 12 m |
Enrollment: | |||||||||
 Eligibility screen | X |  |  |  |  |  |  |  |  |
 Informed consent | X | X |  |  |  |  |  |  |  |
 Allocation |  | X |  |  |  |  |  |  |  |
Interventions: | |||||||||
 Education control |  |  | X |  |  | X | X | X | X |
 BAI + SFAS |  |  | X | X | X | X | X | X | X |
 RT + SFAS |  |  | X | X | X | X | X | X | X |
Assessments: | |||||||||
 Demographics | X | X |  |  |  |  |  |  |  |
Primary outcomes | |||||||||
 Daily Drinking Questionnaire |  | X |  |  |  | X | X | X | X |
 Past month binge drinking |  | X |  |  |  | X | X | X | X |
 Drug Use Questionnaire |  | X |  |  |  | X | X | X | X |
 Brief Young Adult Alcohol Consequences Questionnaire |  | X |  |  |  | X | X | X | X |
Secondary outcomes | |||||||||
 Substance-related problems |  |  |  |  |  |  |  |  |  |
  AUD Symptom Checklist |  | X |  |  |  | X | X | X | X |
  SUD Symptom Checklist |  | X |  |  |  | X | X | X | X |
  Alcohol-Impaired Driving Behavior |  | X |  |  |  | X | X | X | X |
  Marijuana Problem Scale |  | X |  |  |  | X | X | X | X |
Behavioral economic measures | |||||||||
  Activity Level Questionnaire |  | X |  |  |  | X | X | X | X |
  The Alcohol Purchase Task |  | X |  |  |  | X | X | X | X |
  Delay discounting |  | X |  |  |  | X | X | X | X |
Aversive emotional states and coping | |||||||||
  The Depression, Anxiety, and Stress Scales |  | X |  |  |  | X | X | X | X |
The Brief COPE | |||||||||
 Drinking and drinking norms | |||||||||
  NIAAA Drinking Assessment |  | X |  |  |  |  |  |  | X |
  Drinking Norms Rating Form |  | X |  |  |  | X | X | X | X |
  Protective Behavioral Strategies Survey |  | X |  |  |  | X | X | X | X |
Personal values | |||||||||
  Valued Living Questionnaire |  | X |  |  |  | X | X | X | X |