Using a cross-sectional follow-up study we examined how different aspects of work were valued by three cohorts of adolescents 15-16 years of age in 1977 (n = 231), 1989 (n = 404) and 1995 (n = 276), and how these evaluations changed. The association of values with gender and educational plans was analysed. Self-actualising values became more important during the research period. Boys assigned greater weight to extrinsic work values than girls, and girls valued work hygiene values more than boys. The differences between girls and boys were clearer at the end of research period. Educational plans and gender were also related to values. Intrinsic values were valued more highly among girls who expressed plans to seek higher educational routes. (Contains 3 tables and 1 figure.)