Dorans, N. J. (Ed.). (2003). Population invariance of score linking: Theory and applications to Advanced Placement Program examinations (ETS Research Rep. No. RR-03-27). Princeton, NJ: Educational Testing Service.
2.
Dorans, N. J. (Ed.). (2004). Assessing the population sensitivity of equating functions [Special issue] . Journal of Educational Measurement, 41(1).
3.
Dorans, N.J., & Holland, P.W. (2000). Population invariance and equatability of tests: Basic theory and the linear case. Journal of Educational Measurement , 37, 281-306.
4.
Kolen, M.J., & Brennan, R.L. (2004). Test equating, scaling, and linking: Methods and practices (2nd ed.). New York : Springer-Verlag.
5.
Linn, R. L. (Ed.). (1989). Educational measurement (3rd ed.). New York: Macmillan.
6.
von Davier, A.A., Holland, P.W., & Thayer, D.T. (2004). The chain and post-stratification methods for observed-score equating and their relationship to population invariance. Journal of Educational Measurement, 41, 15-32.