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On the Developmental Trajectories of Relational Concepts among Children and Adolescents with Intellectual Disability of Undifferentiated Etiology

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Bibliographic Details
Title: On the Developmental Trajectories of Relational Concepts among Children and Adolescents with Intellectual Disability of Undifferentiated Etiology
Language: English
Authors: Facon, Bruno, Magis, David, Courbois, Yannick
Source: American Journal on Intellectual and Developmental Disabilities. Jan 2021 126(1):14-33.
Availability: American Association on Intellectual and Developmental Disabilities. P.O. Box 1897, Lawrence, KS 66044-1897. Tel: 785-843-1235; Fax: 785-843-1274; e-mail: AJMR@allenpress.com; Web site: https://meridian.allenpress.com/aaidd
Peer Reviewed: Y
Page Count: 20
Publication Date: 2021
Document Type: Journal Articles
Reports - Research
Descriptors: Intellectual Disability, Preadolescents, Early Adolescents, Comprehension, Concept Formation, Children, Child Development, Adolescent Development, Difficulty Level, Vocabulary Development
DOI: 10.1352/1944-7558-126.1.14
ISSN: 1944-7515
Abstract: The aim of this study was to examine the developmental trajectories of comprehension of relational concepts among 557 participants with intellectual disability (ID) of undifferentiated etiology (M age = 12.20 years, SD = 3.18) and 557 typically developing (TD) participants (M age = 4.57 years, SD = 0.80). Logistic regression analyses, with nonverbal cognitive level entered first in the equations, showed only negligible differences with regard to the discriminative power of each of the 72 concepts used as outcome variables, and moderate differences in difficulty for only three items. A moderate mixed effect (i.e., combining a group difference in difficulty and discriminative power) was observed for a fourth item. It is concluded that the developmental trajectories of relational concepts are similar for participants with or without ID. The implications and limitations of the study are discussed.
Abstractor: As Provided
Entry Date: 2021
Accession Number: EJ1280130
Database: ERIC
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Abstract:The aim of this study was to examine the developmental trajectories of comprehension of relational concepts among 557 participants with intellectual disability (ID) of undifferentiated etiology (M age = 12.20 years, SD = 3.18) and 557 typically developing (TD) participants (M age = 4.57 years, SD = 0.80). Logistic regression analyses, with nonverbal cognitive level entered first in the equations, showed only negligible differences with regard to the discriminative power of each of the 72 concepts used as outcome variables, and moderate differences in difficulty for only three items. A moderate mixed effect (i.e., combining a group difference in difficulty and discriminative power) was observed for a fourth item. It is concluded that the developmental trajectories of relational concepts are similar for participants with or without ID. The implications and limitations of the study are discussed.
ISSN:1944-7515
DOI:10.1352/1944-7558-126.1.14