Previous studies have shown that retesting of groups of subnormal pupils does not lead to significant increases in the mean IQ; this present study confirms this for non-immigrant pupils. In contrast, however, there is a significant rise in the mean IQ of a group of immigrants. (Author)

The performance of the older subjects (10 years and up) was facilitated by the organizational cues, whereas that of younger subjects was not. (Author)

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)

Several skills important to successful learning by discovery were found to be less essential to successful learning by rule. Results also supported the hypothesis that the outcome of discovery is the structural integration of previously known concepts, while the outcome of rule learning is the addition of new structure. (Authors)

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)

Results demonstrate that the relationship between the structure of positive and negative instances within a learning series is also critical to concept learning when the concepts are presented in a nondimensioned way. (Authors/CB)

Results indicate that responses are not organized per se, but that response grouping is mediated by stimulus categories. (Author)

This article emphasizes identifying for the practitioner those qualities of situations and individuals which have been shown to have major effects on performance in testing situations. Recommendations for testing practices are made, and the dangers inherent in acceptance of test results as the sole basis for personnel decisions are pointed out.…

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)

Purpose of this study was to provide an analysis of errors performed on a sight-reading test administered to four college freshman piano classes at the end of their first semester of instruction. (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)

Results showed that imagery and frequency factors have independent and additive effects in verbal discrimination learning. (Author)