Motivational Interviewing at Intake vs Intake as Usual on Client Engagement in Addiction Treatment

Inclusion Criteria (client participants): * English-speaking adults seeking treatment for alcohol or other drug use at one of two outpatient addiction treatment programs * Provision of signed and dated informed consent form * Stated willingness to comply with all study procedures * Physically withdrawn from alcohol or other drugs Inclusion Criteria (personnel participants): * English-speaking adults currently employed at one of the two outpatient addiction treatment programs * Provision of electronic informed consent Exclusion Criteria (client participants): * Experiencing severe withdrawal symptoms * Actively psychotic, manic, and/or suicidal Exclusion Criteria (personnel participants): * current position: facility owner or clinical director