Lamont said there is evidence that the program does improve behavior problems in schools. "From the federal government on down, people support this," he said.
Cowan said that although many schools still have zero-tolerance policies, a shift is taking place. "I think we are seeing a trend of schools moving away from it," she said, "because the research is pretty clear."
Learn more about getting Positive Behavioral Interventions and Supports into schools.
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