Westat sets the benchmark for excellence in education research and assessment by supporting teachers, evaluating programs, conducting student assessments, and providing technical assistance. By examining factors that help educators and students, we support improvements for educational achievement.

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Rust, K.F., S. Krawchuk, and C. Monseur. (2017).

Sample design, weighting, and calculation of sampling variance.

Lietz, P., J.C. Cresswell, K.F. Rust, and R.J. Adams. (2017).

Implementation of large-scale education assessments.

Milanowski, A. (2017).

Lower performance evaluation practice ratings for teachers of disadvantaged students: Bias or reflection of reality?.

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