American College Testing Program (ACT). (1989). ASSET technical manual for use with forms B and C. Iowa City, IA:Author.
2.
Hughes, Ronald E., & Nelson, Carlene H. (1991). Placement scores and placement practices: An empirical analysis. Community College Review, 19(1), 42-46.
3.
SAS Institute, Inc. (1990). SAS/STAT user's guide (4th ed., version 6). Cary, NC: Author.
4.
Sawyer, Richard L. (1989). Validating the use of ACT assessment scores and high school grades for remedial course placement in college (ACT Research Report No. 89-4). Iowa City, IA: American College Testing Program.
5.
SPSS, Inc. (1986). Statistical package for the social sciences user's guide (2nd ed.). Chicago: Author.
6.
Tatsuoka, Maurice M. (1971). Multivariate analysis: Techniques for educational and psychological research. New York: Wiley.