Continuous items for most waves watching tv / reading papers / taking part in discussions on political issues / political knowledge / political participation / party preference / questions concerning importance of different political issues / left and right in politics. Wave 16: Media exposure / preferences for current affairs programmes / perception of major problems / definition and self-description: left, right / evaluation of politicians / aggressive attitude / assertiveness / emotionality / dominance versus submissiveness / self-descriptions by forced choice from two alternatives / interest in soccer on tv / soccer watching as outlet for aggressive feelings / visiting soccer matches / behaviour during match. Background variables: basic characteristics/ place of birth/ residence/ household characteristics/ occupation/employment/ income/capital assets/ education/ politics/ readership, mass media, and 'cultural' exposure/ organizational membership