Research findings in the area of brain growth periodization establish that the human brain does not grow on a constant continuum. Eighty-five to ninety percent of youngsters of average and above ability experience periods of great brain growth between ages 3-10 months, 2-4 years, 6-8 years, 10-12 years, and 14-16+ years. Mental growth data have…

Examined quantitative evidence of an intellectual growth spurt during early adolescence by combining modern psychometric modeling, computerized testing with the Raven progressive matrices, and longitudinal socioeconomic and educational backgrounds. Found that gender difference was not significant. Notes the impact of this evidence on educational…