The current study investigates the expression of progressive and habitual aspect in second language Spanish, integrating theoretical insights from usage-based and concept-oriented approaches to second language acquisition, along with quantitative sociolinguistic methods. To address the full breadth of forms involved, the study examines variation…

In American higher education, it has become the accepted standard to measure graduation rates at four-year colleges on a six-year time frame. Evaluations of two-year community colleges are now based on three-year graduation rates. Metrics like these are unacceptable, especially when we consider that students and their families are trying…

Describes the objectives, the procedures, and the evaluation involved in a personalized system of instruction (PSI) that has been introduced, as an option and as an alternative, in teaching a general physics course at Purdue University. (GA)