Research and scholarship into educational effectiveness research (EER) is comprehensively reviewed from the UK, The Netherlands, the US, Cyprus, Belgium, Sweden, France, Germany, New Zealand, Australia, and other societies, dating from the field's origins in the 1970s. Issues include its history, methodological and theoretical advances, scientific…

This article reviews several decades of the author's meta-analytic and experimental research on the conditions under which nonrandomized experiments can approximate the results from randomized experiments (REs). Several studies make clear that we can expect accurate effect estimates from the regression discontinuity design, though its statistical…

To answer the question of whether teaching social and emotional skills to foster social-emotional development can help schools extend their role beyond the transfer of knowledge, the authors conducted a meta-analytical review of 75 recently published studies that reported the effects of universal, school-based social, emotional, and/or behavioral…