A study investigated the effects of a more restrictive standard discrepancy model (SDM) on the learning-disability placement patterns of 4,100 students in Mississippi. Limiting eligibility to students who had achievement scores 1 1/2 standard deviations below their Full Scale IQ scores reduced eligible students from 124 to 36. (CR)

This overview of recent developments in redefining attention deficit/hyperactivity disorder summarizes articles about assessment instruments and procedures and identifies important issues, including the construct of hyperactivity as it relates to attention, classification systems, and the lack of technical adequacy of many assessment instruments…