 The primary aim of this longitudinal, randomized-control study is to compare and contrast this online training modality with a face-to-face training on implementation of and fidelity to the CTI model over time. Nearly two-hundred direct service providers from 20 homeless-service agencies were randomly assigned to complete either an online or face-to-face training in CTI. Pre-post training and knowledge-retention surveys, interviews with trainers, agency administrators, and providers were conducted to track satisfaction with the training and experiences in implementing CTI. CTI-specific chart forms are used to assess fidelity to the CTI model, and administrative data from the agencies capture client-level outcomes. 