Altering school climate through school-wide Positive Behavioral Interventions and Supports: findings from a group-randomized effectiveness trial
Prevention Science (2009) - Comment
pubmed: 19011963  doi: 10.1007/s11121-008-0114-9  issn: 1573-6695  issn: 1389-4986 

Catherine P. Bradshaw, Christine W. Koth, Leslie A. Thornton, Philip J. Leaf