Results of the present study confirm the importance of the contingency variable in experiments dealing with the effect of supportive comment upon children's performance. (Author)

These results suggest that, for the purpose of measuring children's incidental learning, materials with integrated components such as color and shape are functionally different from stimuli with spatially independent components. (Authors)

Study designed to measure effects of relative ability of the peer, his familiarity to the subject, and whatever other peer characteristics might be associated with socioeconomic status.'' (Author)

Experiments reported here confirm the finding that performance can actually improve as intradimensional variability increases. (Authors/MB)

Implication of findings for classical maturation theories of the development of reaction speed are discussed. (Author/MB)

The present study was an attempt to investigate two motivational interpretations of earlier findings that private speech increases with task difficulty. (Authors)

The Ss who had given more Human Movement (M) responses to an inkblot test were found to be more responsive than Ss who had given less M responses to changes in procedures and directions which altered the interest value of the task. This effect was primarily found for the female sample. (Author)

Paper based on this research was presented at the 1968 American Educational Research Association Meetings, Chicago, Illinois. Paper supported in part by a grant from the U.S. Office of Education.