References
- Anastasi, A. Psychological Testing. London: Macmillan, 1968.
- Lindquist, E.F. Basic Considerations in Answer Sheet Design. Paper published by the Houghton-Mifflin Co., Boston, undated.
- Noll, V.H., & Scannell, D.P. Introduction to Educational Measurement. Boston: Houghton-Mifflin, 1972.
- Winer, B.J. Statistical Principles in Experimental Design. New York: McGraw-Hill. 1962.