RecruitingBehavioural interventionBASIS OptimizationThe objective of the BASIS R34 pilot study is to test the impact of eBASIS in a randomized controlled trial (RCT). Consistent with IMPACT's IQM, the study tests effects of eBASIS on treatment fidelity and youth outcomes, compared to a digitally delivered control (N=32 clinicians; 96 clients). A well-established EBP (Cognitive Behavioral Therapy Plus), will be a focus of the investigation, which eligible participants will already be signed up to receive.