Item-Level Psychometrics and Predictors of Performance for Spanish/English Bilingual Speakers on An Object and Action Naming Battery

作者：Edmonds Lisa A^*; Donovan Neila J

来源：Journal of Speech, Language, and Hearing Research, 2012, 55(2): 359-381.

DOI：10.1044/1092-4388(2011/10-0307)

• bilingual
• Rasch
• naming
• validity
• verbs

Purpose: There is a pressing need for psychometrically sound naming materials for Spanish/English bilingual adults. To address this need, in this study the authors examined the psychometric properties of An Object and Action Naming Battery (An O%26A Battery; Druks %26 Masterson, 2000) in bilingual speakers. %26lt;br%26gt;Method: Ninety-one Spanish/English bilinguals named O%26A Battery items in English and Spanish. Responses underwent a Rasch analysis. Using correlation and regression analyses, the authors evaluated the effect of psycholinguistic (e. g., imageability) and participant (e. g., proficiency ratings) variables on accuracy. %26lt;br%26gt;Results: Rasch analysis determined unidimensionality across English and Spanish nouns and verbs and robust item-level psychometric properties, evidence for content validity. Few items did not fit the model, there were no ceiling or floor effects after uninformative and misfit items were removed, and items reflected a range of difficulty. Reliability coefficients were high, and the number of statistically different ability levels provided indices of sensitivity. Regression analyses revealed significant correlations between psycholinguistic variables and accuracy, providing preliminary construct validity. The participant variables that contributed most to accuracy were proficiency ratings and time of language use. %26lt;br%26gt;Conclusions: Results suggest adequate content and construct validity of O%26A items retained in the analysis for Spanish/English bilingual adults and support future efforts to evaluate naming in older bilinguals and persons with bilingual aphasia.

• 出版日期2012-4-1