Consensus of opinions and background matching of partners in marriages in the Netherlands. Background data on marriage and family / voting behaviour / religion / satisfaction in household and job / social contacts in relation with personal problems and worries / self-description / partner description / general attitude towards marriage, financial affairs, leisure time, sexuality, upbringing of and care for children, working married women / socio-cultural and recreational activities of both partners / the role of marriage in happiness of life. Background variables: basic characteristics/ residence/ housing situation/ household characteristics/ characteristics of parental family/household/ occupation/employment/ income/capital assets/ education/ social class/ politics/ religion