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We designed a professional development (PD) program to increase the teacher efficacy of mathematics teachers. We randomly assigned 106 Grade 6 teachers in 1 school district to treatment and control conditions in a delayedtreatment design. The PD explicitly addressed 4 sources of teacher-efficacy information identified in social-cognition theory (Bandura, 1997). Treatment teachers outperformed control-group teachers on 3 measures of teacher efficacy, but results were statistically significant only for efficacy for classroom management. We attributed the teacher-efficacy effects of the PD (6% of the variance) to the priority given in the PD to management of classroom discussions and overt attempts by PD leaders to redefine teacher conceptions of classroom success.
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Ross et al. (2007) studied this question.
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