For the 2014 study, "A Randomized Trial Examining the Effects of Aerobic Physical Activity on Attention-Deficit/Hyperactivity Disorder Symptoms in Young Children", researchers examined the effect of a daily before-school physical activity program on behavioral outcomes of students in grades K-2. The study sample included 202 students who…

Effective schools are typically defined as those schools which improve or maintain already-established high levels of student achievement. A number of issues and research needs are raised which relate to the identification of effective schools. Unless the nature of "effectiveness" can be described and agreed upon, researchers face the possibility…