Sent to the Voice of San Diego, Oct 22, 2016
Prof. Patricia Gandara presents strong arguments for voting "yes" on Proposition 58, which would make it easier to offer bilingual education in California ("California needs to join the rest of the world," Oct 20).. But there is more: Study after study has shown that language minority students in bilingual education programs do better on tests of English than students with similar backgrounds in all-English immersion classes.
The most recent (and strongest) evidence comes from two San Diego area professors, Grace McField (Cal State San Marcos) and David McField (MiraCoasta College) analyzed the results of 23 comparisons. They concluded that when both program quality and research quality are considered, the superiority of bilingual education was considerably larger than previously reported.
University of Southern California
Recent analysis: McField, G. and McField, D. 2014. "The consistent outcome of bilingual education programs: A meta-analysis of meta-analyses." In: The Miseducation of English Learners, edited by Grace McField, and published by Information Age Publishing.