The Cooperative School and College Ability Test as a Predictor of Achievement in Selected High School Subjects

Cooperative School and College Ability Test. Princeton, New Jersey: Educational Testing Service, 1957.

Rottman, L. "The Effectiveness of High School Television-Correspondence Instruction, An Evaluation of the 1958-59 In-School Television Correspondence Study Program at the University of Nebraska Where It Was Sponsored by the University Extension Division and the University Television Station, KUON-TV, Channel 12." Unpublished Ph.D. thesis, University of Nebraska, 1959.