Heterogeneous effects from interventions often remain hidden in between-group analyses, risking overgeneralized conclusions of treatment effects. In this exploratory study, we performed latent profile analysis to unveil differential treatment effects among children in The Incredible Years Teacher Classroom Management Programme (IY TCMP). This…

The study investigates child social competence a three different measurement levels (overall level, factor level, and item level), in a sample of parents and children participating in interventions towards emerging or present child problem behaviours. Parents of 550 children aged 3-12 (71% boys) evaluated social competence using the Home and…

Purpose: Early language difficulties are associated with later internalizing problems across different ages and for different aspects of language. The mechanisms behind this association are, however, less understood. In the current study, we investigated longitudinal associations between language difficulties at 5 years and internalizing problems…

Using data from more than 7000 children from the Norwegian Mother, Father and Child (MoBa) study, this study explored the role of school readiness and teacher-child closeness in the early child education and care (ECEC) setting for the prospective academic and social development of children with early externalizing problems. Mother, ECEC teachers,…

This study examined the development of social skills across five measurement points from 4th through 7th grade, and the influence of child gender and school-related factors on the level and growth of social skills, in a large sample of normally developing children in Norway (N = 2,076). On average, children's social skills scores increased…

This study examined whether the Incredible Years (IY) Teacher Classroom Management (TCM) program implemented as a school-wide preventive intervention at 1st to 3rd grade in a regular school setting reduces the development of problem behavior and improves social competence. Using a quasi-experimental pre-post design, the IYTCM was implemented in 21…

This postscript presents the implementation and evaluation of family and community based intervention programs for children and young people implemented in Norway. The Norwegian experiences and results illustrate how evidence-based programs developed in the U.S. have been transported across geographical and language borders, implemented…

Social Perception Training (SPT) is a program focused on changing the perceptual and cognitive processes involved in suboptimal social interactions. It is administered with whole class of pupils over ten weeks. No previous studies have evaluated its efficacy. The present study investigated the outcome benefit of the program in 18 primary and…

The Social Skills Improvement System-Rating Scales (SSIS-RS) is a multi-informant instrument assessing social skills and problem behavior in children and adolescents. It is a revised version of the Social Skills Rating System (SSRS). A Norwegian translation of the SSRS has been validated, but this has not yet been done for the Norwegian…

It is unclear whether symptoms of autism spectrum disorder (ASD) in young children in the population fit the three-factor structure of ASD as described in the DSM-IV, and cluster together in individual subjects. This study analysed questionnaire data on ASD symptoms filled in by mothers of 11,332 18-month-old children that was collected in the…

Extensive exposure to nonparental child care during the first 4.5 years of life has been demonstrated in some American studies to negatively affect children's socioemotional functioning. Data from 935 preschool children who averaged 54.9 (SD = 3.0) months of age, from Trondheim, Norway were used to examine whether such negative effects, would…

Research suggests that the relation between student-teacher conflict and children's externalizing behavior might be reciprocal, and possibly also between student-teacher conflict and children's social skills. Because children with externalizing behavior also tend to display low levels of social skills, we do not know if one or both of these…

The main purpose of the present study was to explore how social competence reduces behavioral problems. Based on previous findings, we assume that increased social competence can be regarded as a mediating factor in reducing behavior problems. All participants (children and adolescents, n = 112) received an intervention intended to increase social…

Objective: To examine the follow-up effectiveness of brief parent training (BPT) for children with emerging or existing conduct problems. Method: With the use of a randomized controlled trial and parent and teacher reports, this study examined the effectiveness of BPT compared to regular services 6 months after the end of the intervention.…

Background: Anxiety disorders are often present at preschool age. Research on older children and studies contrasting preschoolers with high versus low behavioral inhibition (BI) highlight several risk factors, but these have not been investigated in community samples of young children. Child, parent, and peer factors at age 4 were therefore…