Reardon, Sean F.; Unlu, Fatih; Zhu, Pei; Bloom, Howard S. - In: Journal of Educational and Behavioral Statistics 39 (2014) 1, pp. 53-86
We explore the use of instrumental variables (IV) analysis with a multisite randomized trial to estimate the effect of a mediating variable on an outcome in cases where it can be assumed that the observed mediator is the only mechanism linking treatment assignment to outcomes, an assumption...