Document Detail


Investigating the interchangeability and diagnostic utility of the PPVT-III and PPVT-IV for children with and without SLI.
MedLine Citation:
PMID:  23374021     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The receptive vocabulary performance of pre-school children with specific language impairment (SLI) and typically-developing (TD) controls was compared on the Peabody Picture Vocabulary Test third and fourth edition (PPVT-III and PPVT-IV) to determine consistency in performance and the effect of test revision on identification of impairment. Participants included 40 pre-school children with SLI and 40 controls. Tests were administered in counterbalanced order. Despite a strong relationship between performance on these two tests (p < 0.001), 35% of children performed differently between the two test versions. Children with SLI performed significantly worse than TD children on both tests (p < 0.001). Discriminate analyses identified an optimal standard score cut-off of 103 for both tests. Using this cut-off, sensitivity remained consistent at 80% (95% CI = 0.64-0.90), while specificity was 75% (95% CI = 0.59-0.87) on the PPVT-III and 70% (95% CI = 0.53-0.83) on the PPVT-IV. The results suggest that the two tests do not appear to be interchangeable for more than 1/3rd of children. The findings also highlight the misperception that newer test versions are superior to older in identifying presence or absence of language impairment. Children with SLI are unlikely to score low on these commonly used receptive vocabulary tests, despite known deficits of children with SLI in the area of vocabulary acquisition. Possible explanations for why children with SLI score well on these types of tests will be discussed.
Authors:
Tammie J Spaulding; Sabrina Hosmer; Calli Schechtman
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-4
Journal Detail:
Title:  International journal of speech-language pathology     Volume:  -     ISSN:  1754-9515     ISO Abbreviation:  Int J Speech Lang Pathol     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-2-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101320232     Medline TA:  Int J Speech Lang Pathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
University of Connecticut , CT , USA.
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