Children's differentiation between beliefs about matters of fact and matters of opinion

Two experiments investigated children's implicit and explicit differentiation between beliefs about matters of fact and matters of opinion. In Experiment 1, 8- to 9-year-olds' (n = 88) explicit understanding of the subjectivity of opinions was found to be limited, but their conformity to others' judgments on a matter of opinion was considerably lower than their conformity to others' views regarding an ambiguous fact. In Experiment 2, children aged 6, 8, or 10 years (n = 81) were asked to make judgments either about ambiguous matters of fact or about matters of opinion and then heard an opposing judgment from an expert. All age groups conformed to the opposing judgments on factual matters more than they did to the experts' views on matters of opinion. However, only the oldest children explicitly recognized that opinions are subjective and cannot be "wrong." Implications of these results for models of children's reasoning about epistemic states are discussed.     

Too much to count on: impaired very small numbers in corticobasal degeneration

Patients with corticobasal degeneration (CBD) have calculation impairments. This study examined whether impaired number knowledge depends on verbal mediation. We focused particularly on knowledge of very small numbers, where there is a precise relationship between a cardinality and its number concept, but little hypothesized role for verbal mediation. We evaluated accuracy and reaction time (RT) for matching dot arrays and Arabic numerals involving smaller (2-4) and larger (5-9) cardinalities in non-aphasic patients with CBD (n=16), frontotemporal dementia (FTD; n=23), and healthy controls (n=15). CBD were less accurate and slowed at judging smaller Arabic numeral-dot array stimuli compared to FTD patients and controls. Moreover, only CBD showed longer RTs judging successively larger number-dot array pairs among the smaller cardinalities. Difficulty judging very small numbers is impaired in CBD, suggesting degraded representation of precise number knowledge that does not depend on language functioning.     

Lexical selection is not by competition: a reinterpretation of semantic interference and facilitation effects in the picture-word interference paradigm

The dominant view in the field of lexical access in speech production maintains that selection of a word becomes more difficult as the levels of activation of nontarget words increase--selection by competition. The authors tested this prediction in two sets of experiments. First, the authors show that participants are faster to name pictures of objects (e.g., "bed") in the context of semantically related verb distractors (e.g., sleep) compared with unrelated verb distractors (e.g., shoot). In the second set of experiments, the authors show that target naming latencies (e.g., "horse") are, if anything, faster for within--category semantically close distractor words (e.g., zebra) than for within--category semantically far distractor words (e.g., whale). In the context of previous research, these data ground a new empirical generalization: As distractor words become semantically closer to the target concepts--all else being equal--target naming is facilitated. This fact means that lexical selection does not involve competition, and consequently, that the semantic interference effect does not reflect a lexical level process. This conclusion has important implications for models of lexical access and interpretations of Stroop-like interference effects.     

Comparing Mathematics Interventions: The Effects of Cover-Copy-Compare Alone and Combined with Performance Feedback on Digits Correct and Incorrect

The purpose of this study was to compare the isolated effects of cover-copy-compare (CCC) with the combined effects of CCC and two types of performance feedback (i.e., digits correct and incorrect per minute) on sixth grade students’ mathematics fluency and accuracy. An alternating treatments design was employed to compare treatments across 16 weeks. Participants included three general education sixth grade students whose teachers recommended them for additional help with mathematics calculation. No differentiation between treatments was demonstrated for any of the participants and individual differences pertaining to the number of sessions needed to reach and consistently perform at mastery levels were found. Follow-up data at 4 and 12 days following termination of the intervention phase indicated that all participants continued to perform at mastery levels. Generalization to a slightly more difficult mathematics skill yielded pre-intervention to post-intervention increases, albeit small. Students rated all three treatment conditions favorably.     

Lessons Learned from the National Arts and Youth Demonstration Project: Longitudinal Study of a Canadian After-School Program

We discuss some of the lessons the investigators learned during the development, implementation, and dissemination phases of the National Arts and Youth Demonstration Project (NAYDP). The lessons learned are relevant to various groups involved in large-scale, multi-site, community-based intervention studies: parents, youth, researchers, project staff, policy makers, and funders. Specific lessons learned include: (1) how to engage the community; (2) methodological lessons, including cross-site training and monitoring adherence to research protocol; (3) recruiting and sustaining involvement of parents and youth; (4) program development; and (5) dissemination strategies.     

Cognitive Theories of Depression in Children and Adolescents: A Conceptual and Quantitative Review

This paper quantitatively reviews longitudinal studies examining three central cognitive theories of depression—Beck’s theory, Hopelessness theory, and the Response Styles theory—among children (age 8–12) and adolescents (age 13–19). We examine the effect sizes in 20 longitudinal studies, which investigated the relation between the cognitive vulnerability–stress interaction and its association with prospective elevations in depression after controlling for initial levels of depressive symptoms. The results of this review suggest that across theories there is a small relation between the vulnerability–stress interaction and elevations in depression among children (pr = 0.15) and a moderately larger effect (pr = 0.22) among adolescents. Despite these important findings, understanding their implications has been obscured by critical methodological, statistical, and theoretical limitations that bear on cognitive theories of depression. The evidence base has been limited by poor measurement of cognitive vulnerabilities and over reliance on null hypothesis significance testing; these have contributed to a field with many gaps and inconsistencies. The relative paucity of research on developmental applications of such theories reveals that surprisingly little is known about their hypothesized etiologic mechanisms in children and adolescents. Ways to advance knowledge in the area of cognitive theories of depression among youth are discussed.     

Immediate early gene activation in hippocampus and dorsal striatum: effects of explicit place and response training

Evidence from lesion, electrophysiological, and neuroimaging studies support the hypothesis that the hippocampus and dorsal striatum process afferent inputs in such a way that each structure regulates expression of different behaviors in learning and memory. The present study sought to determine whether rats explicitly trained to perform one of two different learning strategies, spatial or response, would display disparate immediate early gene activation in hippocampus and striatum. c-Fos and Zif268 immunoreactivity (IR) was measured in both hippocampus and striatum 30 or 90 min following criterial performance on a standard plus-maze task (place learners) or a modified T-maze task (response learners). Place and response learning differentially affected c-Fos-IR in striatum but not hippocampus. Specifically, explicit response learning induced greater c-Fos-IR activation in two subregions of the dorsal striatum. This increased c-Fos-IR was dependent upon the number of trials performed prior to reaching behavioral criterion and accuracy of performance during post-testing probe trials. Quantification of Zif268-IR in both hippocampus and striatum failed to distinguish between place and response learners. The changes in c-Fos-IR occurred 30 min, but not 90 min, post-testing. The synthesis of c-Fos early in testing could reflect the recruitment of key structures in learning. Consequently, animals that were able to learn the response task efficiently displayed greater amounts of c-Fos-IR in dorsal striatum.     

Depressive realism and the effect of intertrial interval on judgements of zero, positive, and negative contingencies

In three experiments we tested how the spacing of trials during acquisition of zero, positive, and negative response-outcome contingencies differentially affected depressed and nondepressed students' judgements. Experiment 1 found that nondepressed participants' judgements of zero contingencies increased with longer intertrial intervals (ITIs) but not simply longer procedure durations. Depressed groups' judgements were not sensitive to either manipulation, producing an effect known as depressive realism only with long ITIs. Experiments 2 and 3 tested predictions of Cheng's (1997) Power PC theory and the Rescorla-Wagner (1972) model, that the increase in context exposure experienced during the ITI might influence judgements most with negative contingencies and least with positive contingencies. Results suggested that depressed people were less sensitive to differences in contingency and contextual exposure. We propose that a context-processing difference between depressed and nondepressed people removes any objective notion of “realism” that was originally employed to explain the depressive realism effect (Alloy & Abramson, 1979).     

Marriage and social support in a British–Asian community

People of South Asian origin represent one of the largest ethnic minority populations in Britain. However, research into the marital beliefs and practices of British South Asians has tended to conflate together different South Asian groups of different religious and geographical origins. This study focused on one large religious group originating from one region (Hindus from Gujarat) resident in one large British town, providing analyses drawn from theories of cultural values, acculturation and social identity. Seventy married couples participated in detailed interviews inquiring about the arrangement of their marriage, their attitude towards marriage, gender roles, and the formal and informal support available in times of marital crisis. Our analysis of these interviews suggested that whilst our respondents maintained largely collectivist values in the family, they also saw marriage very much as an expression of individual fulfilment. Marital choice and gender roles in marriage reflected an integrationist strategy combining the traditional cultural practices and identity priorities with the social preferences and economic realities of their new culture. Finally, social support was largely forthcoming from members of the Asian community, reflecting a degree of separation from the majority community particularly when emotional assistance was desired. Copyright © 2000 John Wiley & Sons, Ltd.     

Parental attitudes to the Australian anti-bullying Safe Schools program: a critical discourse analysis

Social Psychology of Education - LGBTIQ children and adolescents experience disproportionate levels of bullying. Safe Schools, an Australian anti-bullying program, has recently been a site of...