A comparison of the impacts of both the Preschool Promoting Alternative Thinking Strategies (PATHS) curriculum and two levels of professional development support through the MyTeachingPartner web site, and both children's social competence and social problems during prekindergarten, and additional examinations of the relationship between both teachers' use and exposure to intervention resources and both children's social competence and social problems, based on data from 233 teachers' reports of the behavior of 980 children in their classrooms