Intervention fidelity
To assure fidelity, intervention sessions will be semi-structured in a manualized format. Given the individualized nature of the sessions, the interventions cannot be fully scripted. A semi-structured approach will allow for use of a fidelity checklist itemizing the expected general content for sessions. The interventionists will be observed by senior staff once weekly, and the fidelity checklist will be completed. Based on the fidelity checklist, senior staff will meet with the interventionists to provide feedback and to review progress, concerns, and address deviations from the intended intervention content. This approach has worked well in our previous trial [