This study proposes a new model, termed the multiple membership piecewise growth model (MM-PGM), to handle individual mobility across clusters frequently encountered in longitudinal studies, especially in educational research wherein some students could attend multiple schools during the course of the study. A real data set containing some…

This report summarizes key indicators that assess the status of the science and engineering (S&E) enterprise within the United States and that illustrate the U.S. global position in multiple aspects of the S&E enterprise. This includes information about the geographic distribution of S&E activities; science, technology, engineering,…

School moves are common during elementary school in the United States. The authors address whether changing schools and residences affects the academic and behavioral development of young students. Utilizing data from the Early Childhood Longitudinal Study, the regression analyses show that, after controlling for prior achievement and behavior,…