The purpose of this study was to examine the difference between students' scores in comprehension (English Language Arts) tests when they are led in Brain Gym® activities before class instruction and when they are taught using traditional teaching strategies. The sample for this study consisted of 11 males and 9 females. Data were collected by…

Through a synthesis of test publisher norms and national longitudinal datasets, this study provides new national norms of academic growth in K-12 reading and math that can be used to reinterpret conventional effect sizes in time units. We propose d' a time-indexed effect size metric to estimate how long it would take for an "untreated"…

During the 1989-90 school year, Tennessee established Project Challenge in 17 of Tennessee's poor and educationally low-performing counties. The program applied the results of Project STAR, a longitudinal experiment causally linking class size to student achievement. This paper presents findings of a study that evaluated Project Challenge by…