There is a lack of knowledge regarding reading development and predictors of reading development for Language Minority students (LMs) such as Asians. In particular, the research base is limited regarding the effectiveness of different reading instructional emphases for Asian LMs. The purpose of the present study was to examine whether language…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…