Experimental Studies of Children's Learning

This article compares John Dewey's theory of inquiry with Jean Piaget's analysis of the mechanisms implied in the increase of knowledge. The sources for this paper are Dewey's studies on logic and the theory of inquiry and Piaget's historical-critical and psychogenetic investigations. Three major conclusions result from the comparison: first, there are significant convergences between the two theories; second, Piaget's developmental analysis makes explicit what is programmatic in Dewey's investigations; and, finally, Piaget is incorrect in characterizing Dewey's pragmatism as a method that does not meet the criteria of intelligent activity.     

When does anxiety help or hinder cognitive test performance? The role of working memory capacity

Cognitive interference theories (e.g. attentional control theory, processing efficiency theory) suggest that high levels of trait anxiety predict adverse effects on the performance of cognitive tasks, particularly those that make high demands on cognitive resources. We tested an interaction hypothesis to determine whether a combination of high anxiety and low working memory capacity (WMC) would predict variance in demanding cognitive test scores. Ninety six adolescents (12‐ to 14‐years‐old) participated in the study, which measured self‐report levels of trait anxiety, working memory, and cognitive test performance. As hypothesized, we found that the anxiety‐WMC interaction explained a significant amount of variance in cognitive test performance (ΔR² .07, p < .01). Trait anxiety was unrelated to cognitive test performance for those adolescents with average WMC scores (β = .13, p > .10). In contrast, trait anxiety was negatively related to test performance in adolescents with low WMC (β = ?.35, p < .05) and positively related to test performance in those with high WMC (β = .49, p < .01). The results of this study suggest that WMC moderates the relationship between anxiety and cognitive test performance and may be a determinant factor in explaining some discrepancies found in the literature. Further research is needed to fully understand the mechanisms involved.     

The stigma of having a parent with mental illness: Genetic attributions and associative stigma

Children often report associative stigma because they are ‘contaminated’ by association with a parent who has a mental illness. An exploratory study was conducted to investigate the role of genetic attributions in the aetiology of associative stigma. The first hypothesis was that genetic attributions would predict associative stigma over and above the contribution of biochemical and stressful‐event attributions, while the second hypothesis was that the relationship between genetic attributions and associative stigma would be mediated by the perceived likelihood that children would develop the same disorder as their parents. Two‐hundred‐and‐two individuals were asked to read a hypothetical scenario describing a teenage girl whose mother had been diagnosed with either schizophrenia or depression. Both hypotheses were supported. The findings of the study have implications for a number of professions working in the community such as teachers and psychologists. Additional avenues for future research are also explored.     

The role of attention in the localization of odors to the mouth

Odors can be perceived as arising from the environment or as part of a flavor located in the mouth. One factor that may dictate where an odor is perceived to be is concurrent gustatory stimulation in the mouth. A taste may impair the ability to attend to an odor, especially if they are perceptually similar. Alternatively, salient mouth-based features of a flavor might command attention at the expense of smell. Experiment 1 and 2, using different stimulus sets, explored the impact of perceptually similar and dissimilar pairings of tastes in the mouth and odors at the nose. In each case, these were followed by judgments of the odor's location (mouth vs. nose). Perceptual similarity had no impact on localization judgments. Experiment 3 then manipulated the salience of the olfactory and gustatory cues and showed that each could independently shift the perceived location of an odorant-salient olfactory cues toward the nose and gustatory cues toward the mouth. These findings suggest that the salient features of a flavor may command attention at the expense of olfaction and, thereby, contribute to oral localization, with implications for flavor binding.     

Olfactory test performance and its relationship with the perceived location of odors

Odors are generally perceived as arising via the nose when sniffed and as part of an orally located flavor during ingestion. The perceived location of an odor may in part be an attentional phenomenon, with concurrent oral stimulation occurring at the expense of access to the olfactory channel. Two predictions were derived from this account: (a) tasks dependent on a capacity to attend to the olfactory channel--odor discrimination and naming--should be adversely affected by oral localization; and (b) tasks not dependent upon a capacity to attend--incidental learning/recognition memory--should not. Using a procedure to generate oral localization, in which odors were presented via the nose with concurrent oral stimulation (sucrose, a viscous fluid or water), greater reported oral localization was associated with poorer odor discrimination and naming, but not with recognition memory performance. These results support the notion that attentional processes contribute to oral localization of odors by reducing the capacity to attend to the olfactory channel.     

Parental Attitudes,Beliefs, and Perceptions about Genetic Testing for FAP and Colorectal Cancer Surveillance in Minors

Familial adenomatous polyposis (FAP) is the second most common hereditary colorectal cancer syndrome and confers a nearly 100% lifetime risk of developing colorectal cancer. Understanding factors that facilitate and inhibit genetic testing and cancer surveillance in children who are members of families affected by FAP will better equip clinicians to clarify misunderstandings and facilitate appropriate care. The aims of this study were to examine parental attitudes and beliefs regarding endoscopic surveillance and genetic testing in minors at risk for developing FAP. This cross-sectional study includes analyses of qualitative and quantitative interview data collected from parents of children with or at risk for FAP. This report includes data from 28 parents with a total of 51 biological children between 10–17 years of age. The parents had a clinical and/or genetic diagnosis of FAP. Most commonly reported facilitators included provider recommendation (surveillance) and personalized medical management (genetic testing). Most commonly reported barriers included lack of provider recommendation (surveillance) and cost (genetic testing).     

Self‐esteem: a behavioural genetic perspective

Self‐esteem, the affective or evaluative appraisal of one's self, is linked with adaptive personality functioning: high self‐esteem is associated with psychological health benefits (e.g. subjective well‐being, absence of depression and anxiety), effective coping with illness, and satisfactory social relationships. Although several pathways have been hypothesized to effect within‐family transmission of self‐esteem (e.g. parenting style, family relationship patterns), we focus in this article on genetic influences. Genetic studies on both global and domain‐specific self‐esteem and on both level and stability of self‐esteem converge in showing that (i) genetic influences on self‐esteem are substantial, (ii) shared environmental influences are minimal, and (iii) non‐shared environmental influences explain the largest amount of variance in self‐esteem. We advocate that understanding of current issues in self‐esteem research will be enriched by including behavioural genetic approaches. Copyright © 2002 John Wiley & Sons, Ltd.     

Coping With Uncertainty: Superstitious Strategies and Secondary Control1

The aim of the present studies was to investigate the relationship between primary and secondary control and the use of superstitious strategies under conditions of uncertainty and stress. In the first study, 78 participants completed a chance‐determined card‐guessing task in which they were permitted to use a psychic's card selections instead of making their own card selections. Participants' use of a superstitious strategy (a psychic's selections) increased significantly with the perceived likelihood of failure, regardless of belief in psychic ability. A second study (N= 102) replicated these findings using a skill task. Overall, these data suggest that as the need to control outcomes becomes increasingly salient, the use of superstitious strategies may represent attempts at secondary control.