A cluster randomized controlled pre-post effectiveness trial of behavioral preschool teacher training (BPTT) delivered in a practitioner assisted group format for children with externalizing behavior problems. Preschools were randomized to either intervention in 25 preschools or as 22 waiting list control preschools, where teachers in preschool classes with the target child or children were program receivers. Participants were 100 target children 3-5 years old together with 72 enrolled preschool teachers and 83 parents as informants of behavioral outcomes after a five months period of implementation (at six months). The intervention was part of the Swedish evidence-based parent and teacher training programs (Comet) for children and youth with elevated externalizing behavior, and here an adapted version was tried in preschool for the first time. Also investigated was eventual generalized effects to the children's homes and improved social competence as an intermediate mechanism for reduced problem behavior. Effects of implementation fidelity in addition to social acceptability and relevance, such as reliable change, was investigated as well.
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Sutter-Eyberg Student Behavior Inventory (SESBI)
Timeframe: Change measures: baseline (pre) and after 6 months (post).
Eyberg Child Behavior Inventory (ECBI)
Timeframe: Change measures: baseline (pre) and after 6 months (post).
Social Competence Scale (SCS)
Timeframe: Change measures: baseline (pre) and after 6 months (post).