# **Survey Design** --- ## Item and Domain Generation See [CEI Survey Protocol][1]. --- ## Participant Selection # #### **Sampled Population** *Semi-structured interviews:* Leaders participating in the CAL-OH Study in California. *CDT meetings:* Representatives of two intermediary organizations (California Institute of Mental Health in California and Center for Innovative Practices in Ohio), the treatment developer (Treatment Foster Care Consultants), and leaders participating in the CAL-OH Study in California and Ohio. *Web-based survey:* System leaders, supervisors, and administrators participating in the CAL-OH Study at the time this study was conducted (2010 - 2012). #### **Sampling Strategy** Purposive sampling. Participants for semi-structured interviews (n = 56) and a focus group (n=6) used to generate items for the Cultural Exchange Inventory were obtained from a purposive sample of county child welfare, child mental health, and juvenile justice systems leaders participating in the CAL-OH Study in California. Inclusion criteria included employment in one of the three service systems in each county participating in the parent study. Of the 71 administrators from 40 California counties invited to participate, 62 representing 34 counties agreed to do so, yielding a response rate of 87.3%. All county service system representatives participating in the parent CAL-OH Study were invited to participate in the Community Development Team meetings that were videotaped and used for analysis of interactions between service system representatives, treatment developers, and representatives from the two intermediary organizations. All service system representatives participating in the parent CAL-OH Study were invited to participate in the web-based survey. The response rate for participation was 47.5%. #### **Specific Groups/Cohorts Sampled** *Semi-structured interviews:* Participants worked in these agencies: - Child welfare (33.9%) - Mental health (30.6%) - Juvenile justice (35.5%) *CDT meetings:* Participants were employed in the state of Ohio (38.3%) or California (61.6%), and worked either in these agencies: - Child welfare (35.1%) - Mental health (23.8%) - Juvenile justice (17.9%) - Other departments of health and/or social services (23.2%) *Web-based survey:* Participants were employed in the state of Ohio (56.1%) or California (43.9%), and worked either in these agencies: - Child welfare (29.5%) - Mental health (19.0%) - Juvenile justice (12.4%) - Departments of health and/or social services (28.6%) - Community based organizations (10.5%) #### **Recruitment Strategy** 1. Participants were contacted via email for recruitment to the study. 2. Written informed consent was obtained from participants of the interviews and focus group and the videotaped CDT meetings. - For data collected using online surveys, each participant was emailed an invitation to participate as well as a link to the web-based survey. 3. After reviewing consent forms and agreeing, participants were able to access the survey and proceed to the survey items. [1]: https://osf.io/3h9uz/