Household survey of persons of Mexican descent living in California, Arizona, New Mexico, Colorado, Texas, and Chicago, Illinois. The purpose was to compile a statistically representative and comprehensive body of empirical information about the social, economic, and psychological status of Chicanos. Major topics covered were mental and physical health and use of health services, family background and composition, customary practices and values, language use and attitudes, employment history, social identity, group consciousness, and political opinions and participation.