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Publication Type
Journal Article
UWI Author(s)
Author, Analytic
Lambert, Michael C.; Williams, S.G.; Morrison, J.W.; Samms-Vaughan, Maureen E.; Mayfield, W.A.; Thornberg, K.R.
Author Affiliation, Ana.
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Article Title
Are the indicators for the language and reasoning subscale of the early childhood environment rating scale-revised psychometrically appropriate for Caribbean classrooms?
Medium Designator
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Connective Phrase
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Journal Title
International Journal for Early Years Education
Translated Title
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Reprint Status
Refereed
Date of Publication
2008
Volume ID
16
Issue ID
1
Page(s)
41-60
Language
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Connective Phrase
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Location/URL
http:; www.informaworld.com/smpp/content~content=a791258494~db=all~jumptype=rss
ISSN
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Notes
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Abstract
Evaluating the psychometric properties of the indicators that comprise the Early Childhood Environment Rating Scale-Revised (ECERS-R) language-reasoning scale from an item response theory (IRT) perspective on a sample of observations from 334 Caribbean classrooms, Stout's procedure revealed that all indicators on this dimension are not part of a single essentially unidimensional construct. IRT-based factor analyses on the indicator scores yielded two factors - named Language-Reasoning Activities and Language-Reasoning Materials. IRT analyses conducted on these two factors revealed that their indicators provide adequate psychometric information and have no floor effects - although they demonstrate evidence for ceiling effects. IRT also revealed that at least within the Caribbean context: (a) the ECERS-R authors have ordered the indicators inappropriately; (b) administration of all indicators is unnecessary; and (c) equally weighting indicators might yield spurious results. IRT-based scoring might improve the psychometric soundness of indicators on this ECERS-R scale.....
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