1. & (Eds.). The I. Q. controversary: critical readings. London: Quartet Books, 1977.
2. Eucational Aims and Curriculum in France: An IEA Survey
3. & Sex differences in the development of spatial and linguistic skills. In and (Eds.), Gender differences: their ontogeny and significance, Baltimore: Williams and Wilkins, 1972.
4. Piaget and beyond: towards a developmentally based technology of instruction. In (Ed.), Children's thinking: what develops?, Hillsdale, NJ: Lawrence Erlbaum Associates, 1978.