"Originally published in Human development, vol. 16, no. 1-2, 1973."

Includes bibliographical references.

Riegel, K.F. An eiptaph for a paradigm, introduction for a symposium -- Fischer, C.T. Intelligence contra IQ, a human science critique and alternative to the natural science approach to man -- Looft, W.R. Conceptions of human nature, educational practice, and individual development -- Tulkin, S.R. and Konner, M.J. Alternative conceptions of intellectual functioning -- Weiner, B. From each according to his abilities, the role of effort in moral society -- Furth, H.G. Piaget, IQ and the nature-nuture controversy -- Overton, W.F. On the assumptive base of the nature-nuture controversy, additive versus interactive conceptions -- Wohlwill, J.F. The concept of experience : S or R? -- Lewis, M. Infant intelligence tests : their use and misuse -- Elias, M.F. Disciplinary barriers to progress in behavior genetics : defensive reactions to bits and pieces.