This round of Euro-Barometer surveys queried respondents on standard Euro-Barometer measures, such as how satisfied they were with their present life, whether they attempted to persuade others close to them to share their views on subjects they held strong opinions about, and whether they discussed political matters. Additional questions focused on the respondents' knowledge of and opinions on the European Community (EC), including whether their country had benefited from being an EC member, and the extent of their personal interest in EC matters. Another major focus of the surveys was membership in the EC. Respondents were asked about the effects of EC membership on such matters as energy, employment, trade, tourism, and relations between nations. Respondents also were asked for opinions on various EC policies. Television viewing habits and interest in French culture were also measured for a subset of respondents in Great Britain, Germany, Belgium, Luxembourg, and Italy. Demographic information about respondents includes age, sex, marital status, number of persons and children living in respondent's home, family income, occupation, age upon completion of full-time education, occupation of head of household, left-right self placement, size of town where respondent lives, and number of people working at respondent's workplace. Indices are included as created by the original investigators. Euro-Barometer 15 contains data gathered from representative samples of respondents who were interviewed in each of the ten nations of the EC (Germany, Great Britain, Denmark, Italy, France, Belgium, Luxembourg, Ireland, the Netherlands, and Greece) in April 1981.