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Acad Pediatr. 2011 Mar-Apr;11(2):128-35. doi: 10.1016/j.acap.2009.11.006. Epub 2010 Mar 15.

Internal psychometric properties of the Children with Special Health Care Needs Screener.

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  • 1Department of Pediatrics, Division of Health Policy and Clinical Effectiveness, Cincinnati Children's Hospital and Medical Center, Cincinnati, Ohio 45229, USA. adam.carle@cchmc.org

Abstract

OBJECTIVE:

Insufficient research has established the measurement properties of the Children with Special Health Care Needs (CSHCN) Screener. This leaves unclear whether CSHCN Screener-based estimates reliably identify CSHCN. We used classical and modern test theory to establish the CSHCN Screener's internal psychometric properties.

METHODS:

Data came from the 2005-2006 National Survey of Children with Special Health Care Needs (NS-CSHCN), a nationally representative survey of US children (N = 359,154).

RESULTS:

Cronbach's α, a measure of internal reliability, equaled .76. Confirmatory factor analysis for ordered-categorical measures indicated that a single underlying trait that we label health-condition-complexity underlies CSHCN Screener responses. Item response theory showed that responses provide particularly precise measurement among children experiencing elevated health-condition-complexity trait levels.

CONCLUSIONS:

Findings demonstrate that responses to the CSHCN Screener as used in the NS-CSHCN have good internal psychometric properties and include minimal random measurement error. Epidemiologists, clinicians and others can rely on CSHCN Screener responses to reliably identify CSHCN experiencing 1 or more of the 5 consequences included on the CSHCN Screener.

Copyright © 2011 Academic Pediatric Association. All rights reserved.

PMID:
20227936
[PubMed - indexed for MEDLINE]
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