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Concurrent validity of the TIMP and the Bayley III scales at 6 weeks corrected age

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posted on 28.10.2014 by Suzann K. Campbell, Laura Zawacki, Kristin M. Rankin, Joseph C. Yoder, Nicole Shapiro, Zhuoying Li, Rosemary White-Traut
Purpose: Examine agreement between the Test of Infant Motor Performance (TIMP) and the Bayley III. Methods: 145 infants born at 29-34 weeks gestation with socioenvironmental risk factors were tested on the TIMP and Bayley III at 6 weeks corrected age (CA). Scores were correlated to assess convergence/divergence of content. Decision analysis using a cutoff of the mean on the Bayley Motor Composite and -.5 and -1 SD from the mean on the TIMP assessed agreement on delay/non-delay. Results: The TIMP-Bayley Motor Composite correlation was .546, with Cognitive was .310, and with Language was .281. Nine percent of infants scored below -1.0 SD on the TIMP while no child performed below -1 SD on the Bayley Motor scale (sensitivity 31%). Conclusions: Convergent validity between the TIMP and the Bayley Motor scale was demonstrated, but no infant showed delay on any Bayley scale. The TIMP is preferred for early assessment of infants.

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Funding

This work was supported by grants from the National Institutes of Child Health and Human Development, the National Institute of Nursing Research (1 R01 HD050738-01A2), and the Harris Foundation (Dr White-Traut, Principal Investigator).

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Publisher Statement

Post print version of article may differ from published version. The final publication is available at www.lww.com/; DOI:10.1097/PEP.0b013e31829db85b

Publisher

Lippincott, Williams & Wilkins

Language

en_US

issn

1538-005X

Issue date

01/10/2013

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