This study compared level of agreement among four models used to diagnose learning disabilities (LD), including the simple discrepancy, intraindividual, intellectual ability-achievement, and underachievement models. The simple discrepancy model diagnosed significantly more college students with LD than the others. The highest agreement was between…

This study addressed the validity of using a five-state multifaceted approach to defining reading disabilities. Comparison of 204 reading-disabled (selected by criteria such as intraindividual differences and low achievement) and normally achieving junior high students on motivational, cognitive, and metacognitive variables (usually associated…

Examination of 53 children with autism supported the validity of the subtypes "aloof" and "active-but-odd" as predictors of behavior across language/communication, reciprocal social interaction, and stereotyped behavior/restricted interest domains. Partial support for an intermediate, "passive" subtype was garnered. (Author/JDD)

The diagnostic decision-making standards used by practicing clinicians to determine language impairment were investigated. Results showed significant interrater agreement among the 27 clinicians' decisions and moderate intrarater reliability within clinician's decisions. Most of the clinicians' diagnostic decision-making standards could be modeled…

Students (ages 6-10, n=144), grouped by age and reading ability, were administered tasks with a demonstrated relationship to reading. The concept of dyslexia was supported only for the older group, for whom dyslexia appeared to be either a phonological deficit or a developmental lag. (Author/DB)