The respondents and their mothers were interviewed separately by different questionnaires to investigate the influence of socialisation on respondents' leisure time spending. Questionnaire sons: specific housing situation / way of spending leisure time: fishing, sports, car-driving, going out, shopping, visiting museums, watching sports, playing games, gardening, housekeeping, studying, reading newspapers and books, watching tv, listening to the radio, and number of hours spent at these activities / preferred leisure activities. Questionnaire mothers: specific housing situation at the time interviewed son was 6-10 years old / playing possibilities in or around the house, availability of garden, playgrounds, playing materials / encouraging playing / playing mates of son and frequency of playing with them / membership of son of sportsclubs / which parent had most authority / opinion about child-rearing / leisure time spending of mother and father during the period their son was 6-10 years old / general opinion about how children should spent their leisure time. Background variables: basic characteristics/ residence/ housing situation/ household characteristics/ characteristics of parental family/household/ occupation/employment/ income/capital assets/ education/ consumption of durables/ organizational membership