The purpose of the study was to compare the differential effects of response independent and response-dependent criteria used to determine when to increase to the next delay interval in the progressive time delay (PTD) procedure. An adapted alternating treatments design was used to evaluate the relative efficiency of three variations of the PTD…

A systematic literature review was conducted to examine the evidence for peer network interventions for students with intellectual and developmental disabilities (IDD). Fifteen studies were identified and evaluated for methodological rigor using the quality indicators published by the Council for Exceptional Children (CEC) and by examining the…

Most students with complex support needs are taught in separate special education classrooms; one reason is teams that inappropriately use the intensity of support needs as the basis for placement in more restrictive placements. This study used Bayesian multilevel modeling to determine whether the intensity of student support needs predicted…

In a person-centred approach, this study investigated profiles of inclusive teachers' beliefs about teaching students with intellectual and developmental disabilities (IDD) and their relations to teacher efficacy for inclusive practice. Eight hundred eighty-seven inclusive teachers in China responded to the Inclusive Teachers' Beliefs…

Rural elementary special education teachers primarily working with students with intellectual and developmental disabilities (IDD) may have less access to training in foundational reading content. We report results of a foundational reading knowledge assessment administered to a national sample of 220 U.S. special education teachers working in…

We used a single case concurrent multiple probe across participants design to evaluate the effects of a multi-component intervention package on the number of correct sentences used when writing about a story for three rural elementary students with intellectual or developmental disabilities and extensive support needs. The package was comprised of…

Historically, research exploring the literacy experiences of learners with intellectual and developmental disabilities (IDD) has prioritized systematic, multicomponent instruction that emphasizes the development of traditional reading and writing skills. However, this approach may inadvertently facilitate literacy gatekeeping and limit…

Parental involvement plays a vital role in the transition from kindergarten to primary school among children with intellectual and developmental disabilities (IDDs); this study aims to explore Chinese parents' experiences of parental involvement during this period. Informed by interpretive phenomenological analysis, semi-structured, one-on-one…

The purpose of this study was to further address the "for whom" in the question of the effectiveness of modified schema-based instruction (MSBI) to teach mathematical problem solving to students with intellectual and developmental disability by evaluating whether positive outcomes from prior research would be replicated with elementary…

This study addresses the need to reinforce the reading learning of students with intellectual and developmental disabilities (IDD) in general education classrooms. A standardized way of assessing support needs in reading (SNr) from the teachers' perspective is proposed. The objectives were (i) to develop an instrument and evaluate its properties…

This study examined the effectiveness of a Derived Relational Responding (DRR) program in improving reading comprehension accuracy among upper elementary students without intellectual or developmental disabilities who struggle to meet grade-level reading standards. Addressing a gap in current interventions, the study investigated whether DRR,…

Functional behavior assessment (FBA) is an integral component of treatment development for students with intellectual and developmental disabilities. The continuum of FBA methods includes indirect, direct, and functional analysis assessment methods. However, there is not a standard for the best approach to the FBA process. This evaluation compared…

The present study sought to determine if systematically teaching the use of visual supports to three students identified as having moderate to severe disabilities resulted in improved task completion and independence in general education settings. For each participant, a visual support system delineated a multi-step task, which prior to the…

Students with intellectual developmental disability (IDD) may have impairments in conceptual, social, and daily life areas that will require support when these students are included in mainstream settings. In order to examine the facilitators and impediments involved in inclusion of students with IDD in regular schools in Israel, we interviewed…

This study investigated Chinese special education teachers' perceptions and practices of individualizing instruction for students with intellectual and developmental disabilities (IDD). Semistructured interviews were conducted with 31 teachers who taught elementary Chinese language arts and math in six public special education schools for students…