Experiments were conducted to explore the operation of retrieval processes in elementary age children's active rehearsal strategies. Using free-recall tasks, subjects were given instructions in active rehearsal as well as supports that might facilitate retrieval operation. Findings suggested that retrieval per se was not necessary for beneficial…

In general, this cross-sectional validation study supports Inhelder and Piaget's claims about the development of concepts of volume and density more easily than younger subjects. (Author/WY)

Previously tested 5th and 6th graders in the two-year follow-up sample continued to respond associatively on the Children's Associative Responding Test, indicating stability in response patterns. Test-retest reliability of the number of errors was high. (Author/WY)

Two experiments explored the relationship between conceptual and procedural knowledge. Results revealed that fourth and sixth graders made computational errors even though they possessed conceptual knowledge. Fifth graders mastered conceptual knowledge before procedural knowledge. Results support the dynamic interaction theory. (BC)