Believe and Prepare is a teacher preparation reform implemented by the Louisiana Department of Education in collaboration with school systems and teacher preparation programs across the state. It was piloted in the 2014/15 school year and became mandatory in July 2018 for incoming teacher candidates in all 18 institutions of higher education that…

In this paper we report on work estimating the stability of value-added estimates of teacher effects, an important area of investigation given public interest in workforce policies that implicitly assume effectiveness is a stable attribute within teachers. The results strongly reject the hypothesis that teacher performance is completely stable…

Better teacher evaluation should lead to better instruction and improved outcomes for students, but more accurate classification of teachers requires better information than is now available. Because existing measures of performance are incomplete and imperfect, measured performance does not always reflect true performance. Teachers who are truly…

In recent months a number of states, such as Tennessee, have considered tying teacher evaluations and tenure to student achievement as part of their Race to the Top plans. This research brief evaluates how well early-career performance signals teacher effectiveness after tenure. The brief presents selected findings from a larger study using North…

The formula is simple: Highly effective teachers equal student academic success. Yet, the physics of American education is anything but. Thus, the question facing education reformers is how can teacher effectiveness be accurately measured in order to improve the teacher workforce? Given the demand for objective, quantitative measures of teacher…

Reforming teacher tenure is an idea that appears to be gaining traction with the underlying assumption being that one can infer to a reasonable degree how well a teacher will perform over her career based on estimates of her early-career effectiveness. Here we explore the potential for using value-added models to estimate performance and inform…

This research brief presents selected findings from work examining the stability of value-added model estimates of teacher effectiveness and their implication for tenure policies. Findings show year-to-year correlations in teacher effects are modest, but pre-tenure estimates of teacher job performance do predict estimated post-tenure performance…