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- catalog contributor b4774683.
- catalog created "1963.".
- catalog date "1963".
- catalog date "1963.".
- catalog dateCopyrighted "1963.".
- catalog description "Bibliography: leaf 11.".
- catalog extent "16 ℓ.".
- catalog issued "1963".
- catalog issued "1963.".
- catalog language "eng".
- catalog publisher "Palo Alto, Calif., American Institute for Research,".
- catalog subject "Mathematics Programmed instruction.".
- catalog subject "Programmed instruction, Self-directed.".
- catalog title "Effects of mathematical ability, pretraining, and interest on self-direction in programed instruction [by] Vincent N. Campbell, Lyle W. Bivens [and] Donald F. Terry. Technical report, grant no. : title VII 7-48-0000-183, Office of Education, U.S. Dept. of Health, Education, and Welfare. Leslie J. Briggs, principal investigator.".
- catalog type "text".