This chapter examines research on professional development, or PD, focusing specifically on underlying assumptions about the nature of teaching and the nature of teacher learning. It examines PD programs according to their assumptions about what teachers need to learn, and it examines PD studies according to how and when they expect to see…

The capacity of the field to conduct power analyses for group randomized trials (GRTs) of educational interventions has improved over the past decade (Authors, 2009). However, a power analysis depends on estimates of design parameters. Hence it is critical to build the empirical base of design parameters for GRTs across a variety of outcomes and…

The main aim of the present study was to develop EFL teachers' performance at Sana'a secondary schools in the light of their professional and specialist needs. Based on literature review, related studies and a panel of jury members' points of view and English teachers' interview, a list of four needs was proposed and used as the most necessary…

The gold standard in making causal inference on program effects is a randomized trial. Most randomization designs in education randomize classrooms or schools rather than individual students. Such "clustered randomization" designs have one principal drawback: They tend to have limited statistical power or precision. This study aims to…

This evaluation report summarizes the impact of the Hartford Effective Schools Initiative (HESI) during the 1984-85 implementation year and is based on: (1) interview and observation data gathered during two day visits to each of the three schools in April and May and compared with similar data collected from the same teachers, facilitators,…

The focus of future Follow Through research should be oriented toward showing what can be done in order to offer information to both federal and local planners on which systems of curriculum design, classroom management, and parent involvement appear to be most effective. To assure this goal, the issues of program efficacy and implementation…

The orientation of this report is that of identifying educational projects which can be considered truly exemplary. The bulk of the report consists of a 23-step procedure for validating the effectiveness of educational programs using existing evaluation data. It is not intended as a guide for conducting evaluations but rather for interpreting data…

The Bilingual Education Evaluation System was developed to help local bilingual education projects overcome evaluation obstacles and design sound, useful evaluations within the constraints of available funding and with responsiveness to current federal legislation and regulations. The evaluation system proposed involves a process component, an…