---
title: A Randomized Controlled Trial of the Impact of a Teacher Classroom Management Program on the Classroom Behavior of Children With and Without Behavior Problems
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# [A Randomized Controlled Trial of the Impact of a Teacher Classroom Management Program on the Classroom Behavior of Children With and Without Behavior Problems](https://www.incredibleyears.com/research/library/article/a-randomized-controlled-trial-of-the-impact-of-a-teacher-classroom-management-program-on-the-classroom-behavior-of-children-with-and-without-behavior-)

 Written by [Incredible Years](https://www.incredibleyears.com/research/library/author/adminiy) | Aug 22, 2013 7:00:00 AM

This randomized controlled trial (RCT) evaluated the efficacy of the Incredible Years (IY) Teacher Classroom Management (TCM; Webster-Stratton & Reid, 2002) program to assess whether training teachers in IY-TCM principles improve teacher behavior, whether any observed improvements impact pupil behavior classroom-wide, and whether these effects can be demonstrated with [children at risk](https://www.sciencedirect.com/topics/social-sciences/at-risk-children) of developing conduct problems. Six intervention and six control classrooms comprising 12 teachers and 107 children (aged 3 to 7 years) were recruited. Children were screened for high or low behavior problems using the cut-off points of the teacher-rated Strengths and Difficulties Questionnaire (Goodman, 1997). The primary outcome measure was independent classroom observations using the Teacher–Pupil Observation Tool (Martin et al., 2010). [Multilevel modeling](https://www.sciencedirect.com/topics/social-sciences/multi-level-modeling) analyses were conducted to examine the effect of the intervention on teacher, classroom, and child behavior. Results showed a significant reduction in classroom off-task behavior (*d* = 0.53), teacher negatives to target children (*d* = 0.36), target child negatives towards the teacher (*d* = 0.42), and target child off-task behavior (*d* = 0.48). These preliminary results demonstrate the potential impact of IY-TCM on both teacher and child behavior.

[**Read the article (PDF)**](https://incredibleyears.com/wp-content/uploads/a-randomized-controlled-trial-of-the-impact-2013.pdf)

Hutchings J, Martin-Forbes P, Daley D, Williams ME. (2013). A randomized controlled trial of the impact of a teacher classroom management program on the classroom behavior of children with and without behavior problems. *Journal of School Psychology 51*(5): 571-85. doi: 10.1016/j.jsp.2013.08.001.

 

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