[1] Amer Inst Res, Natl Ctr Anal Longitudinal Data Educ Res CALDER, Seattle, WA USA
[2] Amer Inst Res, CALDER, 3876 Bridge Way N,Suite 201, Seattle, WA 98103 USA
[3] Univ Washington, Ctr Educ Data & Res CEDR, 3876 Bridge Way N,Suite 201, Seattle, WA 98103 USA
[4] Univ Washington, CEDR, 3876 Bridge Way N,Suite 201, Seattle, WA 98103 USA
[5] Western Washington Univ, Inst Effectiveness, 516 High St, Bellingham, WA 98225 USA