The benefits and costs of comparisons in a novel object categorization task: Interactions with development

We investigated how children use within- or between-category comparisons to generalize novel names for novel objects on the basis of a nonsalient dimension (texture) rather than a salient one (shape). Previous studies have not experimentally addressed the costs associated with comparisons. We conjectured that increasing the number of stimuli to be compared (and thus, converging evidence in favor of the target texture-based generalization), might not necessarily be beneficial, especially in young children (3- to 4-year-olds vs. 5- to 6-year-olds). Our results showed that more evidence in favor of texture (i.e., more within-category exemplars sharing the same texture) did not linearly increase texture-based choices in the same way for younger and older children. They also revealed that between-category comparisons gave rise to texture-based generalizations in both age groups. Overall, our results show that even though within- and between-category comparisons contribute to generalizations based on texture, they also generate cognitive constraints that interact with age.     

Inhibitory control in number-conservation and class-inclusion tasks: A neo-Piagetian inter-task priming study

We investigated whether success in number-conservation and class-inclusion tasks relies on a general ability to inhibit misleading strategies. Two groups of 10-year-olds performed inter-task priming between computerized versions of class-inclusion and number-conservation tasks (Experiment 1). In one group, the class-inclusion task served as a prime and the number-conservation task as an assessment probe and vice versa in the other group. Response times were shorter in the number-conservation task when performed after the class-inclusion task (and vice versa in the other group) than in control prime-probe sequences in which the primes did not require the inhibition of a misleading strategy. Experiment 2 showed that these inter-task priming effects did not simply reflect that class inclusion and number conservation rely on the reversibility of concrete operations as Piaget would have hypothesized. Taken together the results are consistent with the neo-Piagetian assumption that cognitive development is rooted in both the acquisition of knowledge of incremental complexity and the ability to resist (inhibit) previous knowledge. Critically, the present finding suggests that the inhibitory ability is not domain- or strategy-specific.     

Simple arithmetic processing: surface form effects in a priming task

Models of numerical processing vary on whether they assume common or separate processing pathways for problems represented in different surface forms. The present study employed a priming procedure, with target naming task, in an investigation of surface form effects in simple addition and multiplication operations. Participants were presented with Arabic digit and number word problems in one of three prime-target relationships, including congruent (e.g., '2+3' and '5'), incongruent (e.g., '9+7' and '5') and neutral (e.g., 'X+Y' and '5') conditions. The results revealed significant facilitatory effects in response to congruent digit stimuli at SOAs of 300 and 1000ms, in both operations. In contrast, inhibitory effects were observed in response to incongruent word stimuli in both the addition and multiplication operations at 300ms, and in the addition operation at 1000ms. The overall priming effects observed in the digit condition were significantly greater than in the word condition at 1000ms in the multiplication operation and at 300ms in the addition operation. The results provide support to separate pathway accounts of simple arithmetic processing for problems represented in different surface forms. An explanation for variation in processing due to differences in access to visual and phonological representations is provided.     

Suppression of reflexive saccades in younger and older adults: Age comparisons on an antisaccade task

Inhibitory control of prepotent responses has been examined by using the antisaccade task, during which a reflexive saccade toward a peripheral onset must be suppressed before an eye movement in the opposite direction from the onset can be executed. In the present experiments, we sought to determine whether older and younger adults would perform similarly on this task. Older adults had a harder time suppressing their reflexive responses, as measured by an increase in the proportion of saccade direction errors. Despite an age-related decline in saccade direction accuracy, the increase in saccade latency associated with the antisaccade condition was the same for both younger and older adults. These results support the view that the effectiveness of inhibitory control declines with age (Hasher & Zacks, 1988; Hasher, Zacks, & May, 1999).     

The effect of knowledge and context in the elicitation of inferences in class-inclusion reasoning

Abstract

Two experiments were carried out with adult subjects to investigate the conditions of production of inferences in a problem-solving task involving reasoning about class inclusion. We tested the hypothesis that the production of appropriate inferences is facilitated whenever pieces of information are stored in memory that can be matched at least in part with the conclusion resulting from the inference. In Experiment 1, problems involving the same inferential pattern but belonging to three different domains were compared. The inclusion relations were of the type “is a kind of” (semantic domain), “more than” (being 8 years old is being more than 7 years old: logico-mathematical domain) or “what I have received on a given day is a part of what I have in the evening” (possession domain). In the semantic domain, the critical inference may be facilitated by the semantic network of concepts stored in memory. In the logico-mathematical domain, there is no information that corresponds to the critical inference, so that inferences have to be elaborated merely by use of general knowledge about the meaning of the relation. The possession domain is an intermediate case, since the inference corresponds to knowledge about relations in the possession domain. The results clearly support a memory-cueing hypothesis: There is a marked order of difficulty ranging from the logico-mathematical domain (most difficult) to the semantic domain (least difficult). In Experiment 2, equivalent problems using the same conceptual information were compared: The critical inference involved scanning a series of numbers either in direct order (more than 7 is 8, 9, 10) or in reverse order (8, 9, 10 is more than 7). The number of correct solutions was higher and the response latency much shorter for those problems in which the critical inference was of the type “more than 7 is 8, 9 or 10″.     

Gender and distributive justice: The influence of gender-related characteristics on allocations

The influence of dispositional and situational gender-related factors on the distributive justice behavior of males and females was examined in this research. Using the self-other allocation paradigm, traditional and andrognyous subjects outperformed traditional or androgynous opposite-sex co-workers (Experiment 1) or same-sex co-workers (Experiment 2). The task gender-linkage and the physical attractiveness of the opposite-sex co-workers were also considered. The results indicated that androgynous persons were more generous in their allocations and were less influenced by the gender-related characteristics of an opposite-sex co-workers than traditional persons. In same-sex dyads, males were more equitable than females and were uninfluenced by gender-related factors. Traditional, but not androgynous, females adjusted their allocation behavior according to the gender-linkage of the task, allocating more equitably on gender-congruent tasks than on gender-incongruent tasks. The significance of these findings to understanding sex differences in distributive justice behavior is discussed.     

Goal-performance relations: The effects of initial task complexity and task practice

The current study was conducted to examine the effects of task complexity and task practice (trials) on the goal-performance relationship. Specific, difficult goal assignments were predicted to enhance performance on a complex task only in later task practice. On a simpler task, specific, difficult goal assignments were predicted to enhance performance in early task practice and to disrupt performance in later task practice. The results indicated that goals exerted the predicted effects in the simple task version but had no effect in the complex task version. Possible relationships between amount of task practice and stages of skill acquisition are discussed for tasks differing in complexity. The results are also discussed in terms of cognitive resource demands and self-regulatory processes. Implications for the effectiveness of goals in relation to task complexity and task trials are also discussed.This article is based on the senior author's dissertation at the University of Minnesota. We thank Milt Hakel, Allan Jones, and Bart Osburn for their helpful comments on earlier drafts. The authors also wish to thank Phil Ackerman and John Campbell for their insightful comments throughout the research project and other members of the dissertation committee: Rich Arvey, Mark Davisson, and Marvin Dunnette.This research was partially supported by the Air Force Office of Scientific Research Project LAMP, under the auspices of the Air Force Human Resources Laboratory (contract AFOSR-87-0234) and by a Research Initiation Grant from the University of Houston.Portions of this data were presented at the American Psychological Association Meetings, Atlanta, 1988.     

Underestimation of curvature and task dependence in visual perception of form

Perceived curvatures of circular arcs were compared with those of circles. The length and orientation of the arcs varied. In all cases the curvatures of the arcs were underestimated, and the error was a decreasing exponential function of arc length. The results are consistent with the notion that tendency (efferent readiness) to perform rectilinear eye movements produces underestimation of curvature. The results discredited the explanation of the “Gibson normalization effect” as an instance of increase in perceptual accuracy. The overestimation of curvature found in earlier studies was interpreted as resulting from an inappropriate perceptual task and uncontrolled effects of illusions of extent.     

Individual differences in working memory and reasoning-remembering relationships in solving class-inclusion problems

In the present experiment, we evaluated the effects of individual differences in reading span and variation in memory demands on class-inclusion performance. One hundred twenty college students whose reading spans ranged from low to medium to high (as indexed by a computerized version of the Daneman and Carpenter [1980] reading-span task) solved 48 class-inclusion problems. Half of the subjects had the solution information available when the problems were presented; the other half performed a detection task between solution information and problem presentation. The results from both standard statistical analyses and from a mathematical model indicated that differences in reading span and memory load had predictable, similar effects. Specifically, the sophistication of reasoning strategies declined when memory demands increased or when reading spans decreased. Surprisingly, these effects were primarily additive. The results were interpreted in terms of global resource models and findings from the developmental literature.     

An investigation of data collection methods for auditory stimuli: Paired comparisons versus a computer sorting task

Two experiments were performed to determine whether a computer sorting task could be used to collect data for auditory stimuli. Within each experiment, subjects were assigned to either a paired comparison task or a computer sorting task. For the first experiment, the stimuli were 18 graph representations constructed to vary on three parameters (shape, frequency, and amplitude). The stimuli for the second experiment were 30 sentences produced by actors portraying five emotions (anger, fear, happiness, sadness, and neutral). Multidimensional scaling solutions were produced and comparisons were made between the paired comparison and computer sorting task in each experiment. The results suggest that the computer sorting task is a viable alternative to the paired comparison task traditionally used for the investigation of the perception of auditory stimuli.     

Question form analysis in discourse agreement between a mother and a language-learning child

This study analyzed the question form used in discourse between a mother and her language-learning child. Spontaneous taped data of mother-child interactions were collected at three different time periods. Initially the child was 2;3 and data collection stopped at 2;5. Analysis of dialogue units based on protocols of discourse proposed by Mishler (1974) was conducted. Results indicated that question chaining occurred most frequently in discourse, followed by arching, then embedding. All question forms except one were initiated by the mother. Evidence also indicated that the subject did not have the linguistic competence of allwh-question forms by 2;5. This study indicated that question chaining was the most frequent type of discourse analysis with this dyad.     

Introduction: Levinas and Education: The Question of Implication

Studies in Philosophy and Education -     

Gender differences in distributive justice preferences: The impact of domain

Past research has found that distributive justice preferences vary markedly both as a function of gender of allocator and the domain in which outcomes or rewards are allocated (e.g., relationships vs. work contexts). This study examined the interaction of these two factors in determining distributive justice preferences. Subjects were asked to fill out two scales designed to assess the degree to which their general distributive preferences in work contexts and in relationships were benevolent (prefer inputs to exceed outcomes), equity sensitive (prefer outcome/input ratios to be equal), or entitled (prefer outcomes to exceed inputs). Results revealed that women's preferences were significantly more benevolent (or less entitled) than men's in work domains, but that men's and women's distributive preferences did not differ significantly in relationships. In addition, both sexes indicated significantly more entitled preferences in work domains than in relationships, but the difference between domains was much greater for men than for women. These results suggest that, when considering issues of justice, men make a greater distinction between domains than do women, and that previously observed gender differences in distributive justice preferences may be specific to the work domain.     

Gender differences in distributive justice: The role of self-presentation revisited

Kidder, Bellettirie, and Cohn's [(1977) Secret Ambitions and Public Performances: The Effects of Anonymity on Reward Allocations Made by Men and Women, Journal of Experimental Social Psychology, Vol. 13, pp. 70–80] self-presentational account of gender differences in distributive justice was examined. Men and women attending two, primarily white, northeastern universities distributed a jointly earned reward between themselves and a hypothetical co-worker who was either a stranger or a friend and whose inferior task performance resulted from either low ability or low effort. Subjects made their allocations under both public and private conditions. Men allocated more equitably (i.e., according to co-worker input) in public than women did, whereas women allocated more equitably in private than men did, only when working with strangers who exerted low effort. In addition, among female subjects, private allocations to low-effort strangers were more equitable than public allocations. Among male subjects, however, public allocations to low-effort strangers were more equitable than private allocations. The conditions under which men make equitable allocations and women make equal allocations, and possible reasons for these differences, are discussed.This research was presented at the 62nd annual meeting of the Eastern Psychological Association, April 11–14, 1991, New York, NY. We are grateful to Brenda Major, Victor Benassi, Rebecca Warner, members of the University of New Hampshire Social Psychology Research Group, and two anonymous reviewers for their thoughtful comments on an earlier version of this paper.     

The Expertise Question Revisited: Horizontal and Vertical Expertise

This article deals with the developments taking place in the field of family therapy from the expertise perspective, and as an expert practice. This development is looked at as a dialectical movement between two types of expertise, namely vertical and horizontal expertise. This spatial metaphor is put forward as a complementary alternative to the prevailing modern/postmodern debate. A brief account of the development of the study of science and of expertise is provided. The author suggests that the richness of current family therapeutic thinking owes something to both these different modes of expertise, the division not being as exclusive as some postmodernist authors suggest.     

The Best Question

Journal of Philosophical Logic - Suppose we get a chance to ask an angel a question of our choice. What should we ask to make the most of our unique opportunity? Ned Markosian has shown that the...