This study evaluated the accuracy of an experimental version of the Bilingual English Spanish Oral Screener (BESOS) for predicting the long-term risk for language impairment (LI) for a matched group of preschool-aged Spanish–English bilingual children with and without LI. The linear combination of the semantics and morphosyntax scores in the best language resulted in predictive sensitivity of 95.2% and predictive specificity of 71.4%, with an overall accuracy of 81% for predicting risk for LI. The authors concluded a bilingual language screener administered before kindergarten can be useful for predicting risk for LI in bilingual children in 1st grade.
Lugo-Neris, Mirza J., Pena, Elizabeth D., Bedore, Lisa M., and Gillam, Rondald B. (2015). Utility of a Language Screening Measure for Predicting Risk for Language Impairment in Bilinguals. American Journal of Speech-Language Pathology. doi:10.1044/2015_AJSLP-14-0061