Purpose: Developmental language disorder (DLD) is a developmental disorder where children fail to acquire language in the absence of a clear cause. Many studies have reported general motor deficits in children with DLD, but no studies have uncovered a cure. The purpose of our study is to better understand the underlying motor deficits in DLD,…

When physicians are asked to determine the positive predictive value from the a priori probability of a disease and the sensitivity and false positive rate of a medical test (Bayesian reasoning), it often comes to misjudgments with serious consequences. In daily clinical practice, however, it is not only important that doctors receive a tool with…

Background: Assessment of age-associated disorders has become increasingly important. Methods: In a clinical setting, people with intellectual disability with and without dementia were assessed retrospectively using the Neuropsychological Test Battery (NTB) and the Dementia Questionnaire for People with Learning Disabilities (DLD) at two different…

ADHD and anxiety disorders are two of the most prevalent psychiatric diagnoses reported in childhood (CDC, 2016), and their notable overlap in symptom presentation makes them vulnerable to diagnostic overshadowing. Diagnostic overshadowing is a clinician bias made in response to more obvious client characteristics, leading to overlooked diagnoses.…

Due to the coronavirus disease 2019 (COVID-19) pandemic, the importance of telehealth has rapidly increased, in particular as many in-person clinics have closed. Early intervention is crucial for improving outcomes in children with autism spectrum disorder (ASD). As such, the need for timely assessments and diagnoses remains despite…

Reliably diagnosing autism spectrum disorders (ASD) in adulthood poses a challenge to clinicians due to the absence of specific diagnostic markers. This study investigated the potential of interpersonal synchrony (IPS), which has been found to be reduced in ASD, to augment the diagnostic process. IPS was objectively assessed in videos…

In a cohort of kindergarten children in Ontario, Canada with Autism Spectrum Disorder (ASD) (n = 1522), we tested the association of age at ASD diagnosis and characteristics of (1) the child's primary care provider and, (2) the child using health administrative databases. We tested the association of primary care practice model and time from…

Camouflaging in autism spectrum disorder could be a factor in later diagnosis of individuals without co-occurring intellectual disability, particularly among those designated female sex at birth. Little research to date has examined how gender identity impacts camouflaging, however. Further, no study has compared groups that differ in diagnostic…

A systematic retrospective case note review was undertaken to investigate autism diagnostic factors in 124 individuals with Sturge-Weber syndrome (SWS). Social Responsiveness Scale questionnaires were then analysed to explore the severity and profile of autism characteristics in 70 participants. Thirty-two to forty percent of participants had a…

For this 22nd article in the series reviewing recent court decisions concerning appropriate school psychology practice from both professional and legal perspectives, the topic is child find and eligibility under the Individuals with Disabilities Education Act (IDEA), including as a secondary matter the intersecting requirement for a comprehensive…

"The Power to Learn: The Benefits and the Promise of Personalized Instruction" advances the notion that personalized instruction is the direction that schools must take if all students are expected to succeed with difficult learning challenges. Based on the premise that all students are capable, this book offers practical information so…

IQ tests provide numerous scores, but valid interpretation of those scores is dependent on how precisely each score reflects its intended construct and whether it provides unique information independent of other constructs. Thus, IQ scores must be evaluated for their reliability and dimensionality to determine their psychometric utility. As a…

The Autism Diagnostic Observation Schedule, 2nd-edition (ADOS-2) Toddler Module is the current gold-standard measure of autism spectrum disorder (ASD), a neurodevelopmental condition more frequently diagnosed in toddler boys than girls. Some evidence suggests that behaviors assessed by the Toddler Module may capture an ASD phenotype that is more…

There have historically been a variety of diagnostic terms used to describe children with unexplained language disorders. Recently there has been some consensus around the use of the term developmental language disorder (DLD) however, students, in particular graduate students, need to be aware of the various terms that have historically been used…

Relatively little has been published about the prevalence of autism in adults with psychiatric disorders. In this study, all new patients referred to an adult psychiatric outpatient clinic in Sweden between November 2019 and October 2020 (n = 562) were screened for autism spectrum disorders using the Ritvo Autism and Asperger Diagnostic Scale…