Breakdowns in flexible use of information: Intelligence-related differences in transfer following equivalent learning performance

Groups of retarded and nonretarded children were investigated as they learned three rules underlying problems adapted from the Raven Progressive Matrices Test: rotation, imposition, and subtration. The interest was in evaluating group differences in the ease with which the original set of rules was learned and the flexibility with which these rules were transferred to modified contexts. In the case of either learning or transfer, the metric of performance was the amount of aid, specifically the number of computer-generated graduated hints, needed for each subject to solve the problems. The groups were matched on their entering competence to deal with the rules under scrutiny, and also on mental age. No group differences were obtained as the subjects learned the original set of rules. However, on subsequent occasions when required to make flexible use of those rules, clear group differences emerged; and those differences increased as the similarity of the training and test contexts decreased. The results were seen as consistent with theories that emphasize transfer flexibility as one potential source of individual and comparative differences in intelligence.     

Supraspan verbal memory in attention deficit disorder with hyperactivity normal and reading-disabled boys

To assess memory problems associated with attention deficit disorder with hyperactivity (ADDH) and reading disability (RD), nonverbal subspan, span, and supraspan measures was administered to 30 ADDH, 30 normal, and 24 RD boys, ages 7 to 12. Results from the supraspan verbal measures, which included word lists and related and unrelated paired associates, are reported. Across all verbal tasks, deficits became most apparent in ADDH boys on measures requiring organized, deliberate rehearsal strategies, sustained strategic effort, and careful consideration of response alternatives. This pattern suggests impaired self-regulatory or executive processes. RDs showed more generalized deficits across the verbal measures, suggesting problems with verbal processing. Recent studies supporting this interpretation are reviewed.This research was partially supported by Grant MA-6913 from the Medical Research Council of Canada. We are grateful for the help of Rhonda Amsel in the various stages of this project.     

Short-term serial recall in ADDH,normal, and reading-disabled boys

Short-term retention of verbal items of span and subspan length was examined in hyperactive (ADDH), normal and non-ADDH reading-disabled boys. Performance of ADDH and normal boys did not differ on three measures of verbal serial recall. Thus, it appears that the cognitive deficits of ADDH children cannot be attributed to deficient retention of stimuli. In contrast, reading-disabled (RD) boys performed significantly more poorly than both normal and ADDH boys when required to recall verbal items following filled delay intervals in which the children were required to perform a competing verbal activity. The results suggest that verbal encoding of RD children is particularly vulnerable to interference from other verbal stimuli. ADDH and RD children may represent subsamples of children demonstrating academic difficulties, with each group showing a characteristic pattern of cognitive deficits.This article is based on a doctoral dissertation submitted to the Faculty of Graduate Studies and Research of McGill University. Special thanks are due to Rhonda Amsel for her help and advice.     

The social behavior of depressed children: An observational study

Few investigations have examined directly the psychosocial functioning of depressed children. In the present study, 20 depressed and 20 nondepressed fourth-and fifth-grade children were observed in free play during their recess period at school, and their self-perceptions were assessed in subsequent individual sessions. The 10 boys and 10 girls in each group were selected according to their scores on both the Child Depression Inventory and the Peer Nomination Inventory of Depression. Analyses conducted on the eight categories of behavioral observations revealed significant differences between the social behavior of the depressed and the nondepressed children. Although the depressed children made more overtures for social contact than did the nondepressed children and were approached by other children more frequently, they spent more time alone and engaged in a higher frequency of negative interactions with their peers. Consistent with these results, the depressed children's responses to the Self-Perception Profile for Children indicated that they experienced themselves as less socially competent in general, as well as less competent across several specific domains of functioning. These findings are discussed as they relate to developmental processes, theories of adult depression, and recent studies on socially isolated children, and directions for future research in this area are offered.This research was supported in part by Grants MA-8574 from the Medical Research Council of Canada and OMHF No. 923-85/87 from the Ontario Mental health Foundation to the second author.     

Occupational interests: Male-female or high level-low level dichotomy?

The relation between occupational level and masculine and feminine interests was investigated to determine whether sex differences in interests would be minimized at the high end of the occupational continuum and dichotomized at the low end. Subjects were scored on four experimental scales derived from Kuder OIS scales-Male, Female, High Occupational Level, and Low Occupational Level. Scores were subjected to several analyses, including comparisons of mean differences within and across groups, and an errors of classification study. In general, results were consistent with the proposed hypothesis. A strong, unpredicted relation, for the two male groups, between high occupational level and female interests was hypothesized to be the result of a verbal factor common to both sets of interests.     

The dependence of semantic relatedness effects upon prime processing

The semantic relationship between a prime and a target word has been shown to affect the speed at which the target word is processed. This series of experiments investigated how the semantic priming effect is influenced by the nature of the task performed on the prime word. Subjects were asked to perform either a naming or a letter-search task on the prime word and either a lexical-decision or color-naming task on the target word. When the primes were named, response times for the target words were facilitated in the lexical-decision task and inhibited in the color-naming task. However, these effects were eliminated or reduced to an insignificant level when the primes were searched for letters. We suggest that in order to produce the usual priming effect, the primes have to be processed for meaning rather than probed for constituents.     

A Kantian argument in favor of unimpeded access to health care

The principle that everybody should have access to essential health care goods is in conflict with the notion that property rights should be respected. The Kantian doctrine of rights is explored in order to solve this conflict. Kant's notion of a legislative will is explained and used to show the inherent limits of the legal terms “property” and “ownership” (it can refer only to things external to subjects and to possible objects of choice). What is internal to the subject is outside of the realm of the legislative will. A law excluding those unable to pay from access to essential health care would not be just. A law granting that access would be just.     

Forethoughts from the editor

Conclusion  Perhaps the fundamental question involved in assessing research can best be summarized as follows: On the basis of what criteria must the long-term accountability of public funds allocated for research be measured, and who should determine these criteria? Should these criteria be based on the quality or the quantity of research produced; on the actual utilization of the research results; on the relevance of research to one or more aspects of “development”; or on the medium- or long-range “potential” impact of research results? Should these criteria be in accordance with “international” standards or reflect primarily national goals and objectives? In addition, there is the complex issue of knowledge integration, an understanding of which is a prerequisite for the generation of a “generic frame-work” designed to focus on the organization of communication between science and the social environment. Given that research and knowledge generation are becoming increasingly international in scope and impact, it is insufficient to merely contend that knowledge integration must occur through various forms of collaboration involving cross fertilization and interdisciplinary perspectives. This is already complicated at the national—let alone the international—level. Unfortunately, none of these issues have thus far been solved by the ever-expanding range of tools available for assessing research.