Table 1.
Schedule of enrollment, interventions, and assessments for phase III’s pilot randomized controlled trial.
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Enrollment, -t1 | Allocation | Postallocation | Closeout, txa | ||||
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t1b | t2c | t3d |
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| Enrollment | ||||||||
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Screening | ✓ |
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Informed consent or assent | ✓ |
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User Safety Agreement | ✓ |
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Baseline | ✓ |
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Randomization |
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✓ |
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| Interventions | ||||||||
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TAUe (all study participants) | ✓ |
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TECHf app (only TAU+TECH participants) |
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✓ | ✓ | ✓ |
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| Phase III measures for all participants | ||||||||
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Demographics | ✓ |
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Child and Adolescent Services Assessment [64,65] | ✓ |
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Marijuana Use Questionnaire [66,67] | ✓ |
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Timeline Followback Interview [79-81] | ✓ |
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✓ | ✓ | ✓ |
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Urine Drug Screens | ✓ |
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✓ | ✓ | ✓ |
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Selected items on Global Appraisal of Individual Needs [82] | ✓ |
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✓ | ✓ | ✓ |
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Selected items on cannabis use attitudes [83] | ✓ |
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✓ | ✓ | ✓ |
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Marijuana Adolescent Problem Inventory [84] | ✓ |
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✓ | ✓ | ✓ |
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Marijuana Effect Expectancy Questionnaire [85] | ✓ |
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✓ | ✓ | ✓ |
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Cannabis Refusal Self-Efficacy Questionnaire [86,87] | ✓ |
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✓ | ✓ | ✓ |
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Adapted Readiness to Change Questionnaire [88] | ✓ |
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✓ | ✓ | ✓ |
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Descriptive, Injunctive, and Subjective Peer Norms [33] | ✓ |
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✓ | ✓ | ✓ |
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| Phase III measures completed by TAU+TECH participants | ||||||||
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Mobile Application Rating Scale (user version) [77] |
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✓ | ✓ | ✓ |
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Adapted Consumer Satisfaction Questionnaire [78] |
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✓ | ✓ | ✓ |
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Open-ended TECH app feedback questionnaire |
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✓ | ✓ | ✓ |
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| Other phase III measures not completed by participants | ||||||||
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Percent of CINIg youth recruited vs enrolled |
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✓ | |
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Percent of CINI youth who withdraw from the study |
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✓ | |
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TECH app usability metadata |
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✓ | |
aConclusion of study.
b1 month after baseline.
c3 months after baseline.
d6 months after baseline.
eTAU: treatment-as-usual.
fTECH: Teen Empowerment through Computerized Health.
gCINI: court-involved, nonincarcerated.