This data collection consists of seven parts, six individual country datasets (Austria, India, Japan, the Netherlands, Nigeria, and Yugoslavia), and a comparative crossnational dataset. Personal interviews were conducted from 1966 to 1971 in seven nations, including the United States (the U.S.A. dataset can be found separately in POLITICAL PARTICIPATION IN AMERICA, 1967 [ICPSR STUDY 7015], and is included in Part 7, Crossnational File). A set of core questions was designed to ascertain political participation in both local and national affairs. Questions were constructed to measure respondents' involvement in political organizations at both the local and national levels, participation in formal and informal community groups, the extent of individual contact with public officials, attitudes toward recent political and social changes, and respondents' interest in the political process. Basic demographic data is also included. In addition, each national survey contains some items unique to that particular survey.