The current study examined the effect of an online professional development learning experience on teachers’ self-efficacy through 148 (Male=22; Female=126) K-12 teachers and school educators. The Teachers’ Self-Efficacy Scale (TSES) developed by Tschannen- Moran and Woolfolk Hoy (2001) was administered twice with a five-week gap. Additionally, all participants’ descriptive self-analysis of their own score change was examined to analyze teachers’ attributions of their self-efficacy change. Both quantitative and qualitative methodologies were used to analyze the data. The findings indicated that teacher efficacy increased as a result of their online professional development experience. Participants’ self-analysis of their efficacy change provided some possible explanations for mixed reports for the influence of experience on teacher efficacy.

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His research interests include modeling for decision making and optimization, with applications to supply chain, heuristic algorithm development, effective modeling and training for decision making. His publications encompass the developing of decision support systems for supply chain design; manufacturing, transportation and warehousing optimization, manufacturing capacity modeling and forecasting, simulation, scheduling, inventory policy, and process design and optimization. He got his Ph.D in Industrial Engineering at Arizona State University in 1999 with a Fulbright-Conacyt scholarship.