The Quiet Time program provides a 15-min period at the beginning and end of the school day where students may practice Transcendental Meditation (TM) or another quiet activity such as reading silently to oneself. This study examined the impact of participating in Quiet Time on ninth-grade students (n?=?141) by comparing their outcomes to those of…

Multisite trials can clarify the average impact of a new program and the heterogeneity of impacts across sites. Unfortunately, in many applications, compliance with treatment assignment is imperfect. For these applications, we propose an instrumental variable (IV) model with person-specific and site-specific random coefficients. Site-specific IV…