In this article, the change in examinee effort during an assessment, which we will refer to as persistence, is modeled as an effect of item position. A multilevel extension is proposed to analyze hierarchically structured data and decompose the individual differences in persistence. Data from the 2009 Program of International Student Achievement…

The continua model of bilteracy offers a framework in which to situate research,teaching, and language planning in linguistically diverse settings. Using this model, and citing examples of Cambodian and Puerto Rican students in Philadelphia's public schools as illustrative of the challenge facing American educators, this paper suggests that the…

Presents a model of the sociocultural circumstances surrounding the development of language policies and planning and of bilingual education programs in the United States and three Andean countries: Peru, Bolivia, and Ecuador. (Author/CB)