Propensity score methods account for selection bias in observational studies. However, the consistency of the propensity score estimators strongly depends on a correct specification of the propensity score model. Logistic regression and, with increasing popularity, machine learning tools are used to estimate propensity scores. We introduce a…

This study addresses two questions related to teacher preparation and certification: (1) What are the relative effects on student achievement of teachers who chose to be trained through different routes to certification and how do observed teacher practices vary by chosen route to certification?; and (2) What aspects of certification programs…

Based on literature and research on discussion and on educational techniques to improve discussion moderators behaviors, a training program was developed for pre- and in-service teacher educators, business and industry executives and university professors (23 to 28 hours, three and a half days). This program was tested for its effectiveness with…