Background: Under the view of dynamical system theory, expertise in sports emerges from the interaction of multiple constraints. At an individual level, important interactions amongst constraints could include the relationships that evolve between one's family, playmates/coaches, and specific training activities. Or more broadly, other…

This study uses three experiments with different kinds of training conditions to investigate the "easy-to-hard" principle, context interference conditions, and feedback effects for learning anticipatory skills in badminton. Experiment 1 (N = 60) showed that a training program that gradually increases the difficulty level has no advantage over the…

Further commentary on distributed practice and the acquisition of motor skills points out that there are at least two viable theoretical perspectives that can be brought to bear on issues surrounding the acquisition of perceptual-motor skills. (JD)

This report evaluates the Early Childhood Language-Centered Intervention Program in New York City Public Schools. The program was designed to promote the development of preschool handicapped students in a variety of areas. The program objective proposed that the target students would show statistically significant improvement at the .05 level in…