An Autism Spectrum Disorder (ASD) diagnosis is often used to access services. We investigated whether ASD diagnostic outcome varied when DSM-5 was used compared to ICD-10R and DSM-IV-TR in a clinical sample of 150 intellectually able adults. Of those diagnosed with an ASD using ICD-10R, 56% met DSM-5 ASD criteria. A further 19% met DSM-5 (draft)…

Background: Prior research suggests that 60-74% of males and 16-45% of females with fragile X syndrome (FXS) meet criteria for autism spectrum disorder (ASD) in research settings. However, relatively little is known about the rates of clinical diagnoses in FXS and whether such diagnoses are consistent with those performed in a research setting…

Research regarding the prevalence of psychiatric conditions co-occurring with intellectual disability in adults was reviewed. Particular attention was paid to the qualities of sampling and diagnostic methodology, which have been identified as needs in two recent reviews. Sixteen articles published in peer-reviewed journals between 2003 and 2009…

DSM-5, the fifth edition of the American Psychiatric Association's "Diagnostic and Statistical Manual of Mental Disorders," was published in May 2013, amidst a storm of controversy. This article focuses on changes made to the diagnostic criteria for Specific Learning Disorders (SLD). Primary criticisms of the changes in the SLD concern…

Purpose: Studies using speech stimuli to elicit electrophysiologic responses have found approximately 30% of children with language-based learning problems demonstrate abnormal brainstem timing. Research is needed regarding how these responses relate to performance on behavioral tests of central auditory function. The purpose of the study was to…

Without a consensually validated definition and a set of diagnostic criteria, counselors lack the necessary assessment and treatment tools to work effectively with clients with process addictions and their families. Necessary criteria and the results of a needs assessment are presented.

The Rasch method, so often used in educational research, was used to analyze the construct validity of the criteria for premenstrual dysphoric disorder from "The Diagnostic and Statistical Manual of Mental Disorders." The method was used in contrast to using an external validation to establish the diagnostic utility of tests for…

At the present time there are a large number of adults who have "suspected" Asperger syndrome (AS). In this paper we describe a new instrument, the Adult Asperger Assessment (AAA), developed in our clinic for adults with AS. The need for a new instrument relevant to the diagnosis of AS in adulthood arises because existing instruments are designed…