The Equality of Educational Opportunity Study (EEOS), also known as the "Coleman Study," was commissioned by the United States Department of Health, Education, and Welfare in 1966 to assess the availability of equal educational opportunities to children of different race, color, religion, and national origin. This study was conducted in response to provisions of the Civil Rights Act of 1964 and serves as an example of the use of a social survey as an instrument of national policy-making. The EEOS consists of test scores and questionnaire responses obtained from first-, third-, sixth-, ninth-, and twelfth-grade students, and questionnaire responses from teachers and principals. These data were obtained from a national sample of schools in the United States. Data on students include age, gender, race and ethnic identity, socioeconomic background, attitudes toward learning, education and career goals, and racial attitudes. Scores on teacher-administered standardized academic tests are also included. These scores reflect performance on tests assessing ability and achievement in verbal skills, nonverbal associations, reading comprehension, and mathematics. Data on teachers and principals include academic discipline, assessment of verbal facility, salary, education and teaching experience, and attitudes toward race.