As an immigration hub for a diverse group of Spanish speakers, Los Angeles lends itself to research on dialect contact and leveling. Studies regarding the Spanish spoken by natives of Los Angeles reveal considerable homogeneity with respect to pronunciation, vocabulary and terms of address. This uniformity is notable because two different dialect…

This study of 952 fifth and sixth graders in Washington, DC, and Alexandria, Virginia, found that students who were offered the "Higher Achievement" program had higher test scores in mathematical problem solving and were more likely to be admitted to and attend private competitive high schools. "Higher Achievement" is a…

I estimate the impact of attending a magnet school on student achievement in mathematics in a moderately large Southern district. Admission to magnet schools is through lotteries. Actual attendance by lottery winners is of course voluntary. I use lottery outcomes as instruments to control for bias due to self-selection of enrollees. Because…

The present study examined outcomes on the Tennessee Comprehensive Assessment Program/Achievement Test (TCAP/AT) for the KIPP:DIAMOND Academy (KIPP:DA), which is in its second year of operation. Importantly, as in Year 1, a rigorous quasi-experimental research design was employed, in which each KIPP:DA student was individually matched to a highly…