Proposed Sampling

Proposed Sample and Methods By Stage

Stage	Target Audience	Estimated Sample Size Per Methodology	Selection Criteria by Data Collection Methods
Process Evaluation	Executive/Administrative Staff Project Director/Manager Staff Direct Services Staff Partner/Collaborator Staff	Semi-Structured Interviews: 30 Executive/Admin = 5 Project Director/Manager = 5 Direct Services = 10 Partner/Collaborator = 10	Semi-Structured Interviews: Executive/Admin Staff: Individuals from each Grantee (5) who perform senior administrative/managerial duties related to the VITEL program (e.g., Executive Director, President, CEO) Project Director/Manager: Individuals from each Grantee (5) who perform administrative duties related to the VITEL program Direct Services: Individuals from each Grantee (5) who have direct contact with clients to perform treatment related tasks (e.g., outreach workers, counselors, case managers) Partner/Collaborator: Individuals partner/collaborator agencies or organizations who provide complimentary services to VITEL Grantees Progress Report: Executive/Admin and/or Project Director/Manager Staff: Individuals from each Grantee (5) who regularly complete performance progress reports to be in compliance with Federal regulations (e.g., GPRA/GPRAMA) Focus Groups: In-person: Convenience sampling, based on specific criteria, of target audience that consists of clients who have been in SUD treatment for at least 14 days and are willing to participate in the focus group Interaction Form: Targeted universe of VITEL clients who have been administered client surveys per each Grantee (5)
	Executive/Administrative Staff Project Director/Manager Staff	Progress Report: 5 Executive/Admin and/or Project Director/Manager = 5
	Clients	Focus Groups: 45 (In-person) 9 respondents from each Grantee (5) Interaction Form: 500 100 clients from each Grantee (5)
	Total size	580
Outcome Evaluation	Clients	Surveys: 1,500 (100 clients from each Grantee [5]) Client Survey (Baseline) = 500 Client Survey (Discharge) = 500 Client Survey (6-month post baseline) = 500	Surveys: Targeted universe of VITEL clients who will be administered client surveys per each Grantee (5)
	Total size	1,500