Purpose The purpose of this paper is to summarize the key findings from a critical review of
relevant US research to determine whether teachers, on average, improve in their …

The emergence of large longitudinal data sets linking students to teachers has led to rapid
growth in the study of teacher effects on student outcomes by economists over the past …

We study peer effects in the workplace. Specifically, we investigate whether, how, and why
the productivity of a worker depends on the productivity of coworkers in the same team …

Growing concerns over the inadequate achievement of US students have led to proposals to
reward good teachers and penalize (or fire) bad ones. The leading method for assessing …

Research on the effectiveness of educational inputs, particularly research on teacher
effectiveness, typically overlooks teachers' potential impact on behavioral outcomes, such as …

Teacher quality is a key element of student academic success, but few specific teacher
characteristics influence classroom outcomes. This research examines whether teacher …

Research on teacher development reports significant early-career increases in teacher
effectiveness, but the extent to which this is attributable to the development of teachers who …

Value-added models have become popular in research and pay-for-performance plans.
While scholars have focused attention on some aspects of their validity (eg, scoring …

Salary schedules for teachers are a nearly universal feature of American K-12 pub-lic school
districts. Data from national surveys show that close to 100 percent of tra-ditional public …

Nonrandom assignment of students to teachers can bias value-added estimates of teachers'
causal effects. Rothstein (2008, 2010) shows that typical value-added models indicate large …