%0 Journal Article %T Effects of a definition and a varying number of examples and nonexamples on concept attainment %A Klausmeier, Herbert J. %A Feldman, Katherine V. %J Journal of Educational Psychology %V 67 %N 2 %P 174-178 %@ 0022-0663 %D 1975-04-01 %I American Psychological Association %~ DeepDyve