Attention-deficit/hyperactivity disorder (ADHD) is characterized by high levels of inattention, hyperactivity, and impulsivity; however, these symptoms can result from a variety of reasons. To obtain a comprehensive understanding of the various difficulties of individuals with ADHD, especially when co-occurrence difficulties are present, it is…

This study explored the impact of race/ethnicity on three of the four essential characteristics of self-determination--autonomy, self-realization, and psychological empowerment--directly assessed in the National Longitudinal Transition Study-2. Specifically, the impact of race/ethnicity was examined with six disability groups established in…

This report describes the characteristics of students with disabilities in Utah public schools, and presents the single-year mobility and dropout rates for students in grades 6-12, as well as the four-year cohort dropout and graduation rates, for students who started grade 9 for the first time in 2007/08 and constituted the 2011 cohort. Results…

This study compared interstate variability of prevalence rates for special education categories from 1984 to 1985 through 2001 to 2002, using the coefficient of variation (CV), which is designed to compare variances when the means of the groups compared are radically different. The category of learning disabilities, presumed by many to be the most…