This brief offers evidence that although the social interaction of Mexican Amerians with other groups has increased with each generation, in accord with the predictions of assimilation theory, residential and marital integration is slow.

Latino Policy & Issues Briefs numbers 17-21 were generated by the Mexican American Study Project (MASP), a research project based at UCLA. In 1965–66, MASP project teams interviewed Mexican Americans living in Los Angeles and San Antonio; in 1997–2000, Professors Edward E. Telles and Vilma Ortiz re-interviewed the original participants, plus two of their adult children. The two surveys provide data for a systematic analysis of how well Mexican Americans are being absorbed into the predominant culture.