Contact with friends / relations with parents / leisure time / activities outdoors / drinking / parties / smoking / pattern of interest / relations with other sex / talking about personal problems and sexuality / age at which basic sexual information was acquired / sexual experiences / attitude to sexuality / sexual information / information on contraceptives / premarital sexual permissiveness / attitude to abortion / masturbation / romantic love / been in love / attitude to homosexuality / sexual permissiveness / self-perspective about marriage and family raising / evaluation of marriage of parents / information on personal sexual experience / masturbation / homosexuality / expected opinion of parents about sex life / relation with first and latest sex partner / use of contraceptives / satisfaction / how is sex dealt with personally / use of hard and soft drugs. Background variables: basic characteristics/ residence/ household characteristics/ occupation/employment/ education/ social class/ politics/ religion/ consumption of durables/ readership, mass media, and 'cultural' exposure/ organizational membership