Thirty-eight children (aged 3;7–7;6) and one of their parents took part in a study concerning children's perceptions of their social networks. The study made use of a newly developed instrument—the Support, Control and Maintenance Pictures Interview (SCAMPI). The SCAMPI offers an individualized testing environment, employing computer presentation of questions based on photographs of significant persons familiar to the child. SCAMPI is designed to allow data analysis to be carried out with the aid of built-in statistical procedures based on permutation and bootstrap techniques that are optimally adapted to the requirements of individualized testing. The study examines the differentiations young children make between persons in their social networks and the functions they fulfil, the level of agreement between children and their parents and the stability of the children's responses.