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Nelson, J. Ron; Hurley, Kristin Duppong; Synhorst, Lori; Epstein, Michael H.; Stage, Scott; Buckley, Jacquelyn – Exceptional Children, 2009
Within 3-tier behavioral models, universal interventions are expected to prevent the onset of problem behavior in a majority of children altogether and to sustain improvements in child outcomes by the selected and indicated interventions. A cohort longitudinal design was used to assess the extent to which a 3-tier model achieves these expected…
Descriptors: Social Behavior, Academic Achievement, Models, Development

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