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Modeling the Latent Factor Structure of the "EXcEEDS" (EXecutive function Early Evaluation in Down Syndrome) Battery
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Kaylyn Van Deusen; Mark A. Prince; Madison M. Walsh; Lina R. Patel; Miranda E. Pinks; Anna J. Esbensen; Angela John Thurman; Leonard Abbeduto; Courtney Oser; Lisa A. Daunhauer; Deborah J. Fidler – American Journal on Intellectual and Developmental Disabilities, 2025
Executive function (EF) is frequently an area of vulnerability in conditions associated with intellectual disability, like Down syndrome (DS). However, current EF evaluation approaches are not designed for children with underlying neurodevelopmental conditions and may not demonstrate construct validity due to interpretational confounds. The…
Descriptors: Executive Function, Down Syndrome, Neurodevelopmental Disorders, Young Children
Evaluation of a Modified Corsi Task to Assess Visuospatial Short-Term Memory in Young Children with Down Syndrome
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Miranda E. Pinks; Kaylyn Van Deusen; Mark A. Prince; Anna J. Esbensen; Angela John Thurman; Lina R. Patel; Leonard Abbeduto; Madison M. Walsh; Lisa A. Daunhauer; Deborah J. Fidler – American Journal on Intellectual and Developmental Disabilities, 2025
Short-term memory (STM) challenges are often observed in children with Down syndrome (DS), but existing early STM measures introduce measurement confounds in this population. To address the need for valid early STM measures for future DS interventions, this study evaluated the psychometric properties of a modified Corsi Span task, administered to…
Descriptors: Foreign Countries, Short Term Memory, Down Syndrome, Young Children
Validation of the Observer-Reported Communication Ability (ORCA) Measure for Individuals with Angelman Syndrome
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Zigler, Christina K.; Lin, Li; McFatrich, Molly; Lucas, Nicole; Gordon, Kelly L.; Jones, Harrison N.; Berent, Allyson; Panagoulias, Jennifer; Evans, Paula; Reeve, Bryce B. – American Journal on Intellectual and Developmental Disabilities, 2023
There is a critical need for high-quality clinical outcome assessments to capture the important aspects of communication ability of individuals with Angelman syndrome (AS). To center the perspective of caregivers, our team developed the novel Observer-Reported Communication Ability (ORCA) measure using best practice guidelines, with the goal of…
Descriptors: Genetic Disorders, Test Validity, Observation, Communication Skills
Direct Measures of Medication Effects: Exploring the Scientific Utility of Behavior-Analytic Assessments
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Lloyd, Blair P.; Weaver, Emily S.; Torelli, Jessica N.; Pollack, Marney S.; Fareed, Sunya A.; Maxwell-Horn, Angela C. – American Journal on Intellectual and Developmental Disabilities, 2021
The purpose of the current study was to explore the scientific utility of two behavior analytic assessments (i.e., progressive ratio and demand assessments) for psychotropic medication evaluation. For a sample of 23 children with disabilities who were prescribed medication, we conducted a series of generalizability and optimization studies to…
Descriptors: Disabilities, Children, Drug Therapy, Behavior Problems
Vineland-3 Structural Validity and Interpretability of Domain Scores: Implications for Practitioners Assessing Adolescents with Developmental Conditions
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Pandolfi, Vincent; Magyar, Caroline I. – American Journal on Intellectual and Developmental Disabilities, 2021
The Vineland-3 purports to measure three dimensions of adaptive behavior, but empirical evidence pertaining to its structural validity is lacking. In this study, factor analyses were conducted on the standardization sample data for the comprehensive forms within the 11- to 20-year-old age range. Results did not support the three domain structure…
Descriptors: Adjustment (to Environment), Behavior Rating Scales, Test Validity, Scores
Validating and Applying the CSBS-ITC in Neurogenetic Syndromes
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Hamrick, Lisa R.; Tonnsen, Bridgette L. – American Journal on Intellectual and Developmental Disabilities, 2019
Although social communication skills are commonly delayed in children with neurogenetic syndromes (NGS), skill profiles in very young children are largely under characterized, in part due to the lack of validated assessment measures appropriate for these populations. We addressed this gap by validating and applying a popular early social…
Descriptors: Rating Scales, Genetic Disorders, Test Validity, Interpersonal Communication
Examination of the ADOS-2 Expressive Language Score in Fragile X Syndrome
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Fielding-Gebhardt, Heather; Bredin-Oja, Shelley L.; Warren, Steven F. – American Journal on Intellectual and Developmental Disabilities, 2021
The development of an expressive language score for people with autism based on the ADOS-2 was recently reported by Mazurek et al. (2019). The current study examined the construct validity of the ADOS-2 expressive language score (ELS) in a sample of adolescents with fragile X syndrome (n = 45, 10 girls), a neurodevelopmental disorder with high…
Descriptors: Autism, Pervasive Developmental Disorders, Expressive Language, Genetic Disorders
Construct Validation of the "Supports Intensity Scale--Children and Adult Versions": An Application of a Pseudo Multitrait-Multimethod Approach
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Seo, Hyojeong; Shogren, Karrie A.; Little, Todd D.; Thompson, James R.; Wehmeyer, Michael L. – American Journal on Intellectual and Developmental Disabilities, 2016
This study examined the convergent validity of the "Supports Intensity Scale-Adult Version" (SIS-A; Thompson et al., 2015a) and "Supports Intensity Scale-Children's Version" (SIS-C; Thompson et al., 2016a). Data from SISOnline (n = 129,864) for the SIS-A and from the SIS-C standardization sample (n = 4,015) were used for…
Descriptors: Test Construction, Test Validity, Adults, Children
A Psychometric Evaluation of the Motor-Behavioral Assessment Scale for Use as an Outcome Measure in Rett Syndrome Clinical Trials
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Raspa, Melissa; Bann, Carla M.; Gwaltney, Angela; Benke, Timothy A.; Fu, Cary; Glaze, Daniel G.; Haas, Richard; Heydemann, Peter; Jones, Mary; Kaufmann, Walter E.; Lieberman, David; Marsh, Eric; Peters, Sarika; Ryther, Robin; Standridge, Shannon; Skinner, Steven A.; Percy, Alan K.; Neul, Jeffrey L. – American Journal on Intellectual and Developmental Disabilities, 2020
Rett syndrome (RTT) is a neurodevelopmental disorder that primarily affects females. Recent work indicates the potential for disease modifying therapies. However, there remains a need to develop outcome measures for use in clinical trials. Using data from a natural history study (n = 1,075), we examined the factor structure, internal consistency,…
Descriptors: Genetic Disorders, Psychometrics, Psychomotor Skills, Physical Disabilities
Development of a New Attention Rating Scale for Children with Intellectual Disability: The Scale of Attention in Intellectual Disability (SAID)
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Freeman, Nerelie C.; Gray, Kylie M.; Taffe, John R.; Cornish, Kim M. – American Journal on Intellectual and Developmental Disabilities, 2015
Difficulties with attention, impulsivity, and hyperactivity are thought to be as common among children with intellectual disability (ID) as they are in children without ID. Despite this, there is a lack of scales to specifically assess ADHD symptomatology in children and adolescents with ID. This article describes the development and evaluation of…
Descriptors: Attention Deficit Hyperactivity Disorder, Mental Retardation, Comorbidity, Symptoms (Individual Disorders)
Feasibility, Reproducibility, and Clinical Validity of the Pediatric Anxiety Rating Scale--Revised for Fragile X Syndrome
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Russo-Ponsaran, Nicole M.; Yesensky, Jessica; Hessl, David; Berry-Kravis Elizabeth – American Journal on Intellectual and Developmental Disabilities, 2014
Fragile X syndrome (FXS) is the most common inherited cause of intellectual disability and the most common known genetic cause of autism. FXS is associated with psychiatric impairments, including anxiety disorders. There is a paucity of well-developed measures to characterize anxiety in FXS. However, such scales are needed to measure therapeutic…
Descriptors: Genetic Disorders, Children, Anxiety, Anxiety Disorders
Reliability and Validity of the Pediatric Quality of Life Inventory with Individuals with Intellectual and Developmental Disabilities
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Viecili, Michelle A.; Weiss, Jonathan A. – American Journal on Intellectual and Developmental Disabilities, 2015
The Pediatric Quality of Life Inventory (PedsQL) measures health-related quality of life, a growing area of research, particularly among individuals with disabilities. This research is necessary to fully understand the varied needs of the population and, ultimately, ensure that those needs are being met. The current study assessed the reliability…
Descriptors: Mental Retardation, Developmental Disabilities, Children, Quality of Life
Testing Math or Testing Language? The Construct Validity of the KeyMath-Revised for Children with Intellectual Disability and Language Difficulties
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Rhodes, Katherine T.; Branum-Martin, Lee; Morris, Robin D.; Romski, MaryAnn; Sevcik, Rose A. – American Journal on Intellectual and Developmental Disabilities, 2015
Although it is often assumed that mathematics ability alone predicts mathematics test performance, linguistic demands may also predict achievement. This study examined the role of language in mathematics assessment performance for children with intellectual disability (ID) at less severe levels, on the KeyMath-Revised Inventory (KM-R) with a…
Descriptors: Language Skills, Mathematics Skills, Intellectual Disability, Elementary School Students
Development of the Adult Scale of Hostility and Aggression: Reactive-Proactive (A-SHARP)
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Matlock, Scott Thomas; Aman, Michael G. – American Journal on Intellectual and Developmental Disabilities, 2011
In this study, the authors developed the Adult Scale of Hostility and Aggression Reactive-Proactive (A-SHARP). Sixty-one caregivers rated 512 individuals with intellectual and developmental disabilities on the A-SHARP. Exploratory factor analysis revealed 5 factors on the Problem Scale: (a) Verbal Aggression, (b) Physical Aggression, (c) Hostile…
Descriptors: Psychological Patterns, Aggression, Bullying, Measures (Individuals)
Utility of the Rosenberg Self-Esteem Scale
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Davis, Clare; Kellett, Stephen; Beail, Nigel – American Journal on Intellectual and Developmental Disabilities, 2009
The Rosenberg Self-Esteem Scale (RSES) continues to be used to purportedly measure self-esteem of people with intellectual disabilities, despite the lack of sound evidence concerning its validity and reliability when employed with this population. The psychometric foundations of the RSES were analyzed here with a sample of 219 participants with…
Descriptors: Mental Retardation, Measures (Individuals), Psychometrics, Self Esteem
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