Introduction: Individuals with Autism Spectrum Disorder display a pattern of social communication deficits and restricted and repetitive behaviors that leave them particularly vulnerable to developing anxiety. The presence of a co-occurring Intellectual Disability further complicates the situation, compromising traditional diagnostic techniques…

The number of students identified under the Individuals With Disabilities Education Act (IDEA) with an emotional disturbance (ED) has remained remarkably stable over the last 30 years. During this time, approximately 1% of the school-aged population has been identified as disabled under the criteria set forth in IDEA (Kim, Forness, & Walker,…

Background: Despite a reported excess of attention deficit hyperactivity disorder (ADHD) symptoms in individuals with intellectual disability, it has been argued that ADHD symptoms have been under diagnosed and inadequately treated in individuals with intellectual disability. Materials and methods: Published studies focussing on the level of ADHD…

The prevalence of attention-deficit/hyperactivity disorder (ADHD) has been estimated at 3-7% in the population. Children with this disorder are often characterized by symptoms of inattention and/or impulsivity and hyperactivity, which can significantly impact on many aspects of their behaviour and performance. This study investigated the…

At least 60% of children with disabilities have multiple disabilities including visual impairments (VI). Because the visual system is neurologically based, any problems of the neurological system will also likely affect vision. The estimated number of students with VI and additional disabilities has increased significantly over the years. Since…

As part of the Combating Autism Act of 2006, the members of the Interagency Autism Coordinating Committee (IACC) are required to develop an annual "Summary of Advances" to describe each year's top advances in autism spectrum disorder (ASD) research. These advances represent significant progress in the early diagnosis of ASD, understanding the…

The bivariate normal distribution can be used to determine the prevalence of reading disabilities when the primary variables are reading achievement and IQ and when the correlation between reading and IQ is known or can be estimated. The advantages and diadvantages of the bivariate normal distribution are discussed. (Author/CL)

This study found that states with low percentages of students identified as learning disabled (LD) used a diagnostic method for determining a severe discrepancy, whereas few states identifying the most students used such a method. Use of a method to determine a severe discrepancy may reduce inappropriate labeling of students as LD. (Author/JDD)

A survey of 323 studies in behavioral disorders/emotional disturbance was conducted to determine the nature and prevalence of identification criteria to select subjects. Findings revealed a divergent picture of the nature of prevalence of behavorial disorders/emotional disturbance, and a lack of consensus regarding standard identification…

A study explored the construct of general anxiety in 69 individuals with severe and profound mental retardation and evaluated the validity of the DASH-II anxiety subscale to determine its value in categorizing individuals with and without anxiety. Results indicated only behavioral symptoms associated with anxiety could be reliably assessed.…

Discusses hypotheses and methodologies needed to extend understanding of the ethnic representation of students with serious emotional disturbances. Technical methods are discussed to ensure that estimates for the extent of disproportionate representation are accurate. Research needed to produce better conceptual understanding of why…

A study investigated the incidence of attention deficit hyperactivity disorder in 86 adults with severe mental retardation. Using the Diagnostic and Statistical Manual of Mental Disorders, 15% of the sample met the diagnostic criteria. This measure was not influenced by chronological age, adaptive age, IQ, or gender. (Author/CR)

This paper provides an overview of traumatic brain injury (TBI), including incidence, definition, characteristics, assessment and identification, remediation, teacher responsibility, and parent involvement. It discusses the eligibility of students with TBI to receive appropriate and related services in school under the Individuals with…

Noting a high incidence of learning disabilities among students with visual impairments, this article compares definitions of the two conditions. Common assessment approaches are discussed and those inappropriate for students with low vision or blindness are identified. Suggested intervention approaches include adaptation of the environment,…

Nurses applied standard behavioral criteria for major depression to evaluate 89 institutionalized adults with severe or profound intellectual disability. Results suggested that several additional behaviors listed on the Aberrant Behavior Checklist and the Developmental Behavior Checklist may be associated with this disorder in this population.…