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Rothstein, Jesse – Education Finance and Policy, 2009
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 counterfactual effects of fifth-grade teachers on students' fourth-grade learning, indicating that classroom assignments are far from random. This article quantifies…
Descriptors: Grade 5, Academic Achievement, Student Placement, Educational Assessment
Harris, Douglas N.; Sass, Tim R. – National Center for Analysis of Longitudinal Data in Education Research, 2009
Mounting pressure in the policy arena to improve teacher productivity either by improving signals that predict teacher performance or through creating incentive contracts based on performance--has spurred two related questions: Are there important determinants of teacher productivity that are not captured by teacher credentials but that can be…
Descriptors: Credentials, Teacher Effectiveness, Teaching Skills, Principals
Lubienski, Christopher – Education and the Public Interest Center, 2008
A Friedman Foundation report attempts to find empirical support for the contention that competition from private schools, through voucher programs, improves the effectiveness of public schools. In the first year of Ohio's new EdChoice voucher program, the report claims to have found substantial academic gains at public schools exposed to the…
Descriptors: Achievement Gap, Public Schools, Private Schools, School Choice