Although curiosity is an undeniably important aspect of children's cognitive development, a universally accepted operational definition of children's curiosity does not exist. Almost all of the research on measuring curiosity has focused on adults, and has used predominately questionnaire-type measures that are not appropriate for young children.…

Reviews the use of memory measures in the literature. Suggests problems with assumptions underlying Bogartz's proposed new measure. Responds to specific criticisms by claiming that Bogartz is critical of two measures that are not even used, unfamiliar with traditional conditioning theory, wrong in an assertion about traditional measures, and…

Responds to the general criticisms of Rovee-Collier, explaining a proposed new measure of infant memory in terms of four fundamental ideas earlier enumerated by Rovee-Collier and Shyi. Seeks to refute three of four specific criticisms made by Rovee-Collier, and admits a mistake related to the fourth criticism. (BC)

Reviews three response rate measures (in a baseline measurement, immediately after acquisition, and at a long-term retention test) of infant memory that are used in experiments involving infants' conditioned kicking. Compares these measures to a new measure, the fraction of kicking rate remaining after the retention interval. Explains the…