1. Angoff, W. H. (1982). Summary and derivation of equating methods used at ETS. In P. W. Holland & D. B. Rubin (Eds.), Test equating (pp. 55-69). New York: Academic.
2. Angoff, W. H. (1984). Scales, norms, and equivalent scores. Princeton, NJ: Educational Testing Service.
3. Braun, H. I. &Holland, P. W. (1982). Observed-score test equating: A mathematical analysis of some ETS equating procedures. In P. W. Holland & D. B. Rubin (Eds.), Test equating (pp. 9-49). New York: Academic.
4. Cook, L. L., Eignor, D. R. & Schmitt, A. P. (1988). The effects of ZRT and conventional Achievement Test equating results of using equating samples matched on ability (Research Rep. No. RR-88-52). Princeton, NJ: Educational Testing Service.
5. THE IMPACT OF ITEM DELETION ON EQUATING CONVERSIONS AND REPORTED SCORE DISTRIBUTIONS