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ERIC Number: EJ1107349
Record Type: Journal
Publication Date: 2016-Sep
Pages: 13
Abstractor: As Provided
ISSN: ISSN-1534-5084
Examining the Classification Accuracy of a Vocabulary Screening Measure with Preschool Children
Marcotte, Amanda M.; Clemens, Nathan H.; Parker, Christopher; Whitcomb, Sara A.
Assessment for Effective Intervention, v41 n4 p230-242 Sep 2016
This study investigated the classification accuracy of the "Dynamic Indicators of Vocabulary Skills" (DIVS) as a preschool vocabulary screening measure. With a sample of 240 preschoolers, fall and winter DIVS scores were used to predict year-end vocabulary risk using the 25th percentile on the "Peabody Picture Vocabulary Test--Third Edition" (PPVT-III) to denote risk status. Results indicated that DIVS Picture Naming Fluency (PNF) and "Reverse Definition Fluency" (RDF) demonstrated very good accuracy in classifying students according to year-end vocabulary risk status. The DIVS measures also demonstrated stronger accuracy than demographic characteristics known to be indicators of vocabulary difficulties (socioeconomic status, English learner [EL] status, and sex). Combining PNF and RDF did not result in sufficient improvement in accuracy to justify administering both measures as opposed to just one. Further examination of predictive probability values revealed the potential for DIVS measures to improve the precision of vocabulary risk identification over considering EL status alone. Overall, results supported the use of the DIVS as a brief and inexpensive tool for preschool vocabulary screening.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Massachusetts
Identifiers - Assessments and Surveys: Peabody Picture Vocabulary Test
Grant or Contract Numbers: N/A