# **Analysis** --- ## Analysis of Survey Results To examine the effect of cultural exchanges on stage of implementation completion, multivariate analyses were conducted using linear and binary logistic regression. Separate linear regression models for each type of collaboration were constructed for furthest SIC stage reached and proportion of activities completed in Phases 1 (Stages 1–3) and Phase 2 (Stages 4–7); as counties completed neither or both of the two activities in Phase 3 (Stage 8), binary regression models were constructed for this outcome instead. Each model included county, year, state, and experimental condition (CDT vs IND) as covariates. A final model including all collaborations included type of collaboration as a covariate. Convergent and discriminant validity of the cultural exchange process and outcome scales were assessed by computing Spearman rho correlations of CEI scores with EBPAS subscale and total scores, and the climate and structure subscales of the OSC. Spearman correlations were also used to examine potential associations between cultural exchanges and use of research evidence in collaborations with intermediary organizations, the treatment developer, other agencies in the same county, and agencies in other counties.