Bendig, A. W. "The Reliability of Introductory Psychology Letter Grades." Mimeographed Report, Department of Psychology, University of Pittsburgh, 1952.
2.
Clark, E. L. " Reliability of College Grades." American Psychologist, V (1950), 344 .
3.
Ebel, R. L. " Estimation of the Reliability of Ratings." Psychometrika, IV (1951), 407 -424.
4.
Edwards, A. L.Experimental Design in Psychological Research. New York: Rinehart, 1950. 197- 198 , 288- 297 .
5.
Ferguson, G. A. "A Note on the Kuder-Richardson Formula." EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, XI ( 1951), 612-615.
6.
French, J. W. " The Description of Aptitude and Achievement Tests in Terms of Rotated Factors ." Psychometric Monographs, 1951, No. 5 , p. 214.
7.
Gulliksen, H.Theory of Mental Tests. New York: Wiley, 1950 . Chs. I5 and I6.
8.
Horst, Paul. " A Generalized Expression for the Reliability of Measures." Psychometrika , XIV ( 1949), 21-31.
9.
Hoyt, C. " Test Reliability Obtained by Analysis of Variance." Psychometrika , VI (1941), 153 -160.
10.
Kelley, T. L.Fundamentals of Statistics. Cambridge, Mass. : Harvard University Press, 1947, 388-395.
11.
Kuder, G. F. and Richardson, M. W. "The Theory and Estimation of Test Reliability ." Psychometrika, II (1937), 151- 160 .
12.
Krumm, R. L. " Interrelationships of Measured Interest and Personality Traits of Introductory Psychology Instructors and Their Students as Related to Student Achievement ." Ph.D. dissertation, University of Pittsburgh, 1952.
13.
McNemar, Q.Psychological Statistics. New York: Wiley, 1949, 211- 215.
14.
Thorndike, R. L.Personnel Selection. New York: Wiley, 1949, p. 93.
15.
Thorndike, R. L. " Reliability ." In Lindquist, E. L. (ed.), Educational Measurement. Washington, D. C.: American Council on Education, 1951, 579- 586 , 591- 592 .
