Background: People with intellectual disability have poor balance skills and greater fall risk. The Short Physical Performance Battery (SPPB) provides comprehensive information on functional status and can predict fall risk. However, the reliability and validity of the SPPB have not been evaluated in people with intellectual disability. Methods:…

Background: There are no psychometrically validated instruments available to measure motor skills of children with profound intellectual and multiple disabilities (PIMD). In this study, the construct validity and reliability (Rho) of the Motor Development List for children with PIMD (MDL-PIMD), a proxy-reported measure, was investigated. Methods:…

Background: The CAMDEX-DS is an instrument to diagnose Alzheimer's disease (AD) in Down syndrome consisting of an informant interview and a cognitive test battery (CAMCOG-DS). Measurement properties of the German CAMDEX-DS were investigated. Method: Fifty-five adults with Down syndrome (19-58 years) participated in this observational study.…

Background: Body experience is an important facet of psychosocial functioning and health. However, to date no test exists to measure body experience in adults with mild intellectual disability and borderline intellectual functioning (MID-BIF). We therefore adapted the Body Experience Questionnaire (BEQ) to this group, resulting in the BEQ-mb, and…

Background: Social vulnerability refers to the ways in which an individual is at risk of being victimised. The Test of Interpersonal Competences and Personal Vulnerability [TICPV] is an Australian assessment tool designed for adults with intellectual disabilities (ID) [Wilson et al. (1996). Vulnerability to criminal exploitation: Influence of…

Background: The Personal Outcomes Scale is a measurement tool to examine quality of life among persons with intellectual disability. This paper addressed the validity and reliability of the Japanese version of the scale using both self-reports and reports of others. Method: Data were collected from 128 people with intellectual disability (90 men…

Background: Direct support professionals' (DSPs') attitudes toward nutrition are important for supporting a healthy lifestyle of persons with intellectual disabilities. However, there are no instruments to measure it. The aim of this study was to compose a questionnaire and determine its internal validity. Method: The previously validated Health…

Background: The Developmental Behaviour Checklist (DBC) is an established, internationally used questionnaire for assessing behavioural and emotional problems among young people with developmental or intellectual disabilities (ID). The present study aims to evaluate the psychometric properties of its German teacher version (DBC-T). Method: The…

Background: The quality of life (QOL) of children with and without intellectual disability (ID) has become a growing concern in the literature but the QOL instruments are not adapted for use with young children and children with ID. The objective of this study was to validate a French adaptation of the abbreviated form of the Multidimensional…

Background: In this study, we evaluated the feasibility of using the German-language version of a recently developed screening tool for dementia for persons with intellectual disability (ID): the National Task Group -- Early Detection Screen for Dementia (NTG-EDSD). Method: Some 221 paid carers of ageing persons with ID were asked to use the…

Background: As a comprehensive measure for children with autism spectrum disorder (ASD), the Psychoeducational Profile -- Third Edition (PEP-3) has been validated and widely used in the United States. This study attempted to investigate the psychometric properties of the Chinese version of the PEP-3 (CPEP-3) Caregiver Report. Method: A total of…

Background: The Six-Minute Walk Test (6MWT) has been used with clinical and healthy populations to assess functional capacity and cardiovascular fitness. The aim of this study was to determine the test-retest reliability of a modified-6MWT as well as concurrent validity of walk distance with peak oxygen uptake (VO[subscript 2] peak). Method:…

Background: In this study we aimed to develop a Spanish version of the Self-Efficacy/Social Support Scales for Activity for persons with Intellectual Disability (SE/SS-AID). Method: A cross-sectional study was carried out in a sample of 117 individuals with intellectual disability (ID). The SE/SS-AID scales were translated into Spanish and their…

Background: The aim of this paper was to evaluate the reliability and validity of the Equity Perception Scale -- Intellectual Disability Services (EPS-IDS), a detailed measure of staff equity perceptions in services for people with intellectual disability (ID). The EPS-IDS contains 3 relationship indices that assess staff relationships with their…

Background: Most instruments that assess quality of life have been validated by means of the classical test theory (CTT). However, CTT limitations have resulted in the development of alternative models, such as the Rasch rating scale model (RSM). The main goal of this paper is testing and improving the psychometric properties of the INTEGRAL…