Recruitment
Effective selection strategies are crucial for the success and implementation of prevention programs. Identification of children at risk for development of a disorder requires a screening procedure that must be acceptable to the school administration, parents, and children. The procedure must also be feasible. Although a diagnostic interview may be considered optimal for children in a clinical sample, such an approach would not be feasible in a school setting. One possible screening procedure to identify children at risk is using elevated scores on measures of the targeted problem. The extent to which screening can be conducted with all children will depend on school rules, IRB requirements, and the school culture. In Norway, screening entire age groups of children for symptoms is neither usual nor seen as acceptable. Screening entire age groups was therefore not an option.