This study concerns the ethical issues related to interviews with children. In a substudy of the Basic Skills, Social Interaction and Training of the Working Memory (BASTA) project, 10 children between 10 and 12 years of age were interviewed. Interviews involving children have to address many more ethical issues than interviews with adults. Children constitute an overexposed group because they are under age and because they stand in a dependent relationship with adults. One ethical dilemma for the researcher in interviews with children might be the conflict between professional secrecy and the obligation to report, as stated in the Swedish Social Services Act. According to this Act and to ethical research principles, researchers are bound to maintain professional secrecy.