Funding for this research was provided by:
Center for Substance Abuse Treatment (TI025977)
Received: 9 July 2019
Accepted: 30 January 2020
First Online: 10 February 2020
Ethics approval and consent to participate
: Approved at site IRBs; Sheffield Hallam University, #ER5231303, and Indiana State University, #1151112–2. Consent was collected via written study information sheets.
: N/A (no individual person’s data included).
: JA, JT, and TD report no conflicts of interest related to the content of this manuscript. TS and MD are both members of the Motivational Interviewing Network of Trainers (MINT).