Study title

Description of the relation between characteristics of family and school and development of intellectual performance. Results of intelligence tests / questionnaires for father, mother and school teachers of respondent / mother: presence at home / performance at school of other children / way r is brought up: demands on behaviour of r, paying attention, stimulations, interdictions, sanctions, freedom, taking over decisions, playing games, values, expectations for future, presence of toys, drawing materials / family situation: participation of father in education / reading about bringing up children / father: independence in job, consultation at work, most important aspects of job / working attitude / values connected with upbringing / stimulation of child to achieve, ideas, views on this subject / school teachers: occupational career, position at school / position of school, educational system / being informed about pupils / application of project learning / extent of freedom, rules, sanctions / working conditions, structure of task, training / evaluation of school life, atmosphere, views on pupil-teacher relation / objectives of education, educational systems / consequences of differences in social class / evaluation of organization, decision making and participation of parents / view on r's personality and behaviour. Background variables: basic characteristics/ household characteristics/ characteristics of parental family/household/ occupation/employment/ education/ religion/ readership, mass media, and 'cultural' exposure/ organizational membership