This study investigated whether it was more beneficial to provide the learners in computer-based learning environments access to on demand (self-regulated) help after they committed an error in problem solving or for the learning environment to externally regulate the presentation of instructional help. Furthermore, two different resentational…

This paper reports findings from an ongoing program of research aimed at the discovery of signals and the formation of rules relevant to the organization of two-person, face-to-face conversations. (Author)

An extension of discrimination-learning theory based on the inhibition of stimulus intensity was proposed and supported as a mechanism of cognitive development. Among 48 normal and 37 educable mentally retarded children the predominant category of transistional children conserved at a low level of stimulus intensity but failed to conserve at a…

The present study represents further tests of hypothesis about peformance in verbal conditioning derived from a demand characteristics approach. (Author)

These data have important implications for both theories of memory in general and for theories of retardate memory in particular. (Author)

A series of three experiments with nursery school children is reported using texture cues to investigate the relationship between cue differences and learning rate. (Authors/MB)