1. INTERNAL AND EXTERNAL VALIDITY OF THE COMPARATIVE INTERRUPTED TIME‐SERIES DESIGN: A META‐ANALYSIS. (4th January 2022) Authors: Coopersmith, Jared; Cook, Thomas D.; Zurovac, Jelena; Chaplin, Duncan; Forrow, Lauren V. Editors: Barnow, Burt Journal: Journal of policy analysis and management Issue: Volume 41:issue 1(2022) Page Start: 252 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗