Computer adaptive test approach to the assessment of children and youth with brachial plexus birth palsy

M. J. Mulcahey, Lisa Merenda, Feng Tian, Scott Kozin, Michelle James, Gloria Gogola, Pengsheng Ni

Research output: Contribution to journalArticle

5 Scopus citations


This study examined the psychometric properties of item pools relevant to upper-extremity function and activity performance and evaluated simulated 5-, 10-, and 15-item computer adaptive tests (CATs). In a multicenter, cross-sectional study of 200 children and youth with brachial plexus birth palsy (BPBP), parents responded to upper-extremity (n 5 52) and activity (n 5 34) items using a 5-point response scale. We used confirmatory and exploratory factor analysis, ordinal logistic regression, item maps, and standard errors to evaluate the psychometric properties of the item banks. Validity was evaluated using analysis of variance and Pearson correlation coefficients. Results show that the two item pools have acceptable model fit, scaled well for children and youth with BPBP, and had good validity, content range, and precision. Simulated CATs performed comparably to the full item banks, suggesting that a reduced number of items provide similar information to the entire set of items.

Original languageEnglish (US)
Pages (from-to)524-533
Number of pages10
JournalAmerican Journal of Occupational Therapy
Issue number5
StatePublished - Sep 2013
Externally publishedYes


ASJC Scopus subject areas

  • Occupational Therapy

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