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A Bifactor Model of the Autism Spectrum Disorder Phenotype
Journal of the American Academy of Child & Adolescent Psychiatry, 2019I read with interest the newly published work by Kim et al. describing the covariance structure of parent-reported autism spectrum disorder (ASD) symptoms.1 The authors compared many different latent class, factor analytic, and factor mixture models in a large, clinically referred sample, concluding that the ASD phenotype is best described by three ...
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IRT linking methods for the bifactor model
2018<p>For unidimensional item response theory (UIRT) models, three linking methods, which are the separate, concurrent, and fixed parameter calibration methods, have been developed and widely used in applications such as vertical scaling, differential item functioning, computerized adaptive testing (CAT), and equating. By contrast, even though a few
Kyung Yong Kim +5 more
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Examination of a Bifactor Model of Obsessive-Compulsive Symptom Dimensions
Assessment, 2016Although obsessive-compulsive (OC) symptoms are observed along four dimensions (contamination, responsibility for harm, order/symmetry, and unacceptable thoughts), the structure of the dimensions remains unclear. The current study evaluated a bifactor model of OC symptoms among those with and without obsessive-compulsive disorder (OCD). The goals were (
Bunmi O, Olatunji +2 more
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Bifactor structure of clinical disability in relapsing multiple sclerosis
Multiple Sclerosis and Related Disorders, 2014Multiple sclerosis (MS) can affect virtually every neurological function which complicates the conceptualization and assessment of disability. Similar challenges are encountered in other medical fields including child cognitive development and psychiatry, for instance. In these disciplines progress in diagnosis and outcome measurement has been recently
Eric, Chamot +2 more
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A Bifactor Analysis for a Mode-of-Administration Effect
Applied Measurement in Education, 2007This study investigated the usefulness of the bifactor model in the investigation of score equivalence from computerized and paper-and-pencil formats of the same reading tests. Concerns about the equivalence of the paper-and-pencil and computerized formats were warranted because of the use of reading passages, computer unfamiliarity of primary school ...
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Introduction to bifactor polytomous item response theory analysis
Journal of School Psychology, 2017A bifactor item response theory model can be used to aid in the interpretation of the dimensionality of a multifaceted questionnaire that assumes continuous latent variables underlying the propensity to respond to items. This model can be used to describe the locations of people on a general continuous latent variable as well as on continuous ...
Toland, M. D +4 more
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A guide to exploratory structural equation modeling (ESEM) and bifactor-ESEM in body image research
Body Image, 2023Alexandre Morin +2 more
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