Our objective was to use a community-based participatory research approach to identify and compare barriers to healthcare experienced by autistic adults and adults with and without other disabilities. To do so, we developed a Long- and Short-Form instrument to assess barriers in clinical and research settings. Using the Barriers to Healthcare…

Background: Based on the idea of the Common Sense Model of Illness Representations by Leventhal as well as Lohaus's concepts of health and illness, a health behaviour model was designed to explain health behaviours applied by persons with intellectual disabilities (ID). The key proposal of this model is that the way someone understands the…

This study assessed the diagnostic utility of the Pervasive Developmental Disorder Behavior Inventory (PDDBI) in a sample of 84 children aged 3-12 years of age. Forty-two children with ASD were individually matched on age and non-verbal IQ to 42 children with other disabilities and groups were compared on PDDBI subscales and total score. Results…

Including students with special educational needs in learning (SEN-L) is a challenge for large-scale assessments. In order to draw inferences with respect to students with SEN-L and to compare their scores to students in general education, one needs to assure that the measurement model is reliable and that the same construct is measured for…

The purpose of this study was to examine the average treatment effect of preschool special education services on children's kindergarten academic skills. Using data from a nationally representative sample of United States children who participated in the Early Childhood Longitudinal Study--Birth Cohort, we examined the effectiveness of preschool…

As the population of young dual language learners continues to rise, how can early childhood professionals choose culturally and linguistically appropriate assessments for Spanish-English bilingual preschoolers? They'll get expert guidance in this one-of-a-kind resource, a comprehensive roundup and analysis of 37 developmental assessments…

The study of measurement invariance in polytomous items that targets individual score levels is known as differential step functioning (DSF; Penfield, 2007, 2008). DSF methods provide specific information describing the manifestation of the invariance effect within particular score levels and therefore serve a diagnostic role in identifying the…

Federal legislation such as "No Child Left Behind" mandated that students with disabilities be included in accountability standards, creating an important responsibility to fairly assess all students, even those with disabilities. Consequently, a sense of urgency was placed on the entire educational system to ensure that these students…

English language learners with disabilities (ELLWD) face many challenges in their academic career. Learning a new language and coping with their disabilities create obstacles in their academic progress. Variables relegating accessibility of assessments for students with disabilities and ELL students may seriously hinder the academic performance of…

This study examines the appropriateness of a large-scale state standards-based English-Language Arts (ELA) assessment for students who are deaf or hard of hearing by comparing the internal test structures for these students to students without disabilities. The Grade 4 and 8 ELA assessments were analyzed via a series of parcel-level exploratory…

Many students who are deaf or hard-of-hearing are eligible for a signing accommodation for state and other standardized tests. The signing accommodation, however, presents several challenges for testing programs that attempt to administer tests under standardized conditions. One potential solution for many of these challenges is the use of…

Background: Despite the huge youth population, there is a lack of psychiatric diagnostic instruments with reported psychometric properties in Chinese. This study reports the development of the Chinese version of DISC-IV and examines its test-retest reliability. Method: Seventy-eight parents and 79 youths (mean age 13.1 years) attending child…

What are the factors that made college studies easier or more difficult for students with and without disabilities? What are the obstacles and what are the facilitators? These are the questions we investigated in a sample of 74 students with disabilities (excluding students who only reported having a learning disability) and to 154 students…