As adolescents with intellectual disability (ID) transition to adulthood, there is a need to plan for effective community-based supports that address the post-school life. There is also a need to plan for the impact of factors (e.g., medical/behavioral support needs) on supports needed for community participation. Data from the "Supports…

Given the emphasis on promoting self-determination in the field of special education and the corresponding use of scales to measure self-determination in research and practice, it is important to examine whether widely used self-determination assessments measure the same constructs among and between students from different disability categories.…

The purpose of this article is to describe preliminary psychometric characteristics of a student self-report measure of self-determination, the "Self-Determination Inventory: Student Report" version (SDI-SR), designed for youth with and without disabilities. We administered the draft assessment to 311 youth and examined item functioning…

Given the growing importance of support needs assessment in the field of intellectual disability, it is imperative to develop assessments of support needs whose scores and inferences demonstrate reliability and validity. The purpose of this study was to examine the criterion validity of scores on the "Supports Intensity Scale-Children's…

This study examined similarities and differences in measurement properties and score comparability of the "Supports Intensity Scale-Adult Version" (16-64 years) and the "Supports Intensity Scale-Children's Version" (5-16 years). Data were collected from 142 adolescents with intellectual disability with both versions of the…

This study compared the reliability, validity, and measurement properties of the "Supports Intensity Scale-Children's Version" (SIS-C) in children with autism and intellectual disability (n = 2,124) and children with intellectual disability only (n = 1,861). The results suggest that SIS-C is a valid and reliable tool in both populations.…

The Supports Intensity Scale-Children's Version (SIS-C) was developed to assess the support needs of children and youth aged 5 to 16 years with intellectual and developmental disabilities. Data from the standardization sample of the SIS-C were analyzed to evaluate the impact of the age cohorts (5-6, 7-8, 9-10, 11-12, 13-14, and 15-16 years) used…

The Supports Intensity Scale-Children's Version (SIS-C)was developed to assess the support needs of children and youth aged 5 to 16 years with intellectual and developmental disabilities. Data from the standardization sample of the SIS-C were analyzed to evaluate the impact of the age cohorts (5-6, 7-8, 9-10, 11-12, 13-14, and 15-16 years) used to…

This study examined individual and instructional predictors of the self-determination of students with disabilities, as measured by the "Arc's Self-Determination Scale" and the student version of the "AIR Self-Determination Scale." The general findings indicated that instructional, knowledge, and dispositional factors were stronger predictors of…

Since the early 1990s, attention has been focused on the importance of self-determination in the education of students with disabilities. The purpose of this study was to further our understanding of the construct of self-determination by examining the relationship between the "Arc's Self-Determination Scale" and the "American…