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Understanding the Support Needs of People with Intellectual and Related Developmental Disabilities through Cluster Analysis and Factor Analysis of Statewide Data
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Viriyangkura, Yuwadee – ProQuest LLC, 2014
Through a secondary analysis of statewide data from Colorado, people with intellectual and related developmental disabilities (ID/DD) were classified into five clusters based on their support needs characteristics using cluster analysis techniques. Prior latent factor models of support needs in the field of ID/DD were examined to investigate the…
Descriptors: Intellectual Disability, Developmental Disabilities, Classification, Multivariate Analysis
Examination of the Factor Structure and Agreement of Three Questionnaires for Identifying Young Children at Risk for Autism Spectrum Disorders
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Alkherainej, Khaled – ProQuest LLC, 2012
The factor structure and agreement among commonly used questionnaires for identifying children at risk for developmental disability and autism spectrum disorders between the ages of 36 and 66 months were studied. The Age and Stages Questionnaires (ASQ), the Ages and Stages Questionnaire: Social Emotional (ASQ: SE), and the Social Communication…
Descriptors: Factor Structure, Questionnaires, Disability Identification, At Risk Persons
An Assessment of Character and Leadership Development Latent Factor Structures through Confirmatory Factor, Item Response Theory, and Latent Class Analyses
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Higginbotham, David L. – ProQuest LLC, 2013
This study leveraged the complementary nature of confirmatory factor (CFA), item response theory (IRT), and latent class (LCA) analyses to strengthen the rigor and sophistication of evaluation of two new measures of the Air Force Academy's "leader of character" definition--the Character Mosaic Virtues (CMV) and the Leadership Mosaic…
Descriptors: Moral Development, Personality Development, Military Training, Leadership Training
Bi-Factor Multidimensional Item Response Theory Modeling for Subscores Estimation, Reliability, and Classification
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Md Desa, Zairul Nor Deana – ProQuest LLC, 2012
In recent years, there has been increasing interest in estimating and improving subscore reliability. In this study, the multidimensional item response theory (MIRT) and the bi-factor model were combined to estimate subscores, to obtain subscores reliability, and subscores classification. Both the compensatory and partially compensatory MIRT…
Descriptors: Item Response Theory, Computation, Reliability, Classification