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141.
Research on adolescents focuses increasingly on features of the family in predicting and preventing illicit substance use. Multivariate analyses of data from the National Survey of Parents and Youth (N=4173) revealed numerous significant differences on risk variables associated with family structure on adolescent drug-related perceptions and substance use. Youth from dual-parent households were least likely to use drugs and were monitored more closely than single-parent youth (p<0.001). A path analytic model estimated to illuminate linkages among theoretically implicated variables revealed that family income and child's gender (p<0.001), along with family structure (p<0.05), affected parental monitoring, but not parental warmth. Monitoring and warmth, in turn, predicted adolescents' social and interpersonal perceptions of drug use (p<0.001), and both variables anticipated adolescents' actual drug use one year later (p<0.001). Results reconfirm the importance of parental monitoring and warmth and demonstrate the link between these variables, adolescents' social and intrapersonal beliefs, and their use of illicit substances.  相似文献   
142.
Mental set is observed when a familiar problem-solving strategy is applied to new problems that can be solved in simpler, more efficient ways. It is most famously illustrated in the water jar problems (Luchins, 1942 ). In these volume measurement problems, participants learn a rule to obtain an exact volume of liquid involving a complex combination of liquid transfer. Participants persevere in using this rule for new problems that can be solved with a much simpler rule. In two experiments presented here, participants completed the water jar task either in interactive conditions with actual water jars at a sink or in noninteractive conditions, with the problems presented on paper, as in the original Luchins procedure. Interactivity significantly reduced the degree of perseverance. In addition, participants' visuospatial skills significantly predicted the rate of perseverance (and the latencies to solution) in interactive but not in noninteractive conditions. These results underscore the importance of designing problem-solving experiments that engineer distributed cognitive systems in which participants coordinate internal and external resources in thinking.  相似文献   
143.
This study examined the effects of the Positive Action (PA) programme in Chicago Public Schools on problem behaviours among a cohort of elementary school students from grade three through grade five. Using a matched-pair, randomised control design with 14 elementary schools, approximately 510 fifth-graders self-reported lifetime substance use, serious violence-related behaviour, and current bullying and disruptive behaviours. Three-level (i.e. students nested within schools within school pairs) overdispersed Poisson models were used to examine programme effects on the number of items endorsed for each of the four outcomes. Findings indicated that students in the intervention endorsed 31% fewer substance use behaviours (incidence rate ratio [IRR] = 0.69), 37% fewer violence-related behaviours (IRR = 0.63) and 41% fewer bullying behaviours (IRR = 0.59), respectively, compared to students in the control schools. Reduction in reported disruptive behaviours was of a similar magnitude (27%, IRR = 0.73), but was not statistically significant. These results replicate findings of an earlier randomised trial of the PA programme and extend evidence of its effectiveness to youth attending large urban school systems.  相似文献   
144.
School as an institution is not powerful enough to fight external mechanisms leading to gender inequalities. Sport, as Physical Education (PE), remains a male domain and appears as a site for the reproduction of hegemonic masculinity. In PE, girls obtain lower grades than boys; teachers support boys more. This paper focuses upon the French pupils’ perceptions of injustice with respect to teacher support and grades relative to gender and social gender role orientation. Data were collected through questionnaires from 1620 pupils in secondary school. Although boys, Androgynous and Masculine pupils, obtained significantly higher grades in PE, they felt more deprivation. Concerning teacher support, girls’ perceptions of injustice were similar to boys’ perceptions, and Undifferentiated pupils perceived the highest deprivation level. Pupil’s perceptions may not be free of gender stereotypes. Vanessa Lentillon is in the third year of PhD in the Centre de Recherche et d’Innovation sur le Sport (C.R.I.S.). She is employed as a temporary personal for teaching and research (A.T.E.R.) at the University of Sport in Lyon, France. Her research concerns injustices perceived in Physical Education related to gender issues. She has written various book chapters and articles on her research. E-mail: vanessa.lentillon@univ-lyonl.fr Geneviè Cogérino is Professor at the University and works in the Centre d’Innovation et de Recherche sur le Sport (C.R.I.S.), France. Her research mainly concerns the gender issue in physical education. She has authored a recent book and several articles on this subject. E-mail: cogerino. genevieve@upicardie.fr Mattias Kaestner works at the International Academy of Sport Science and Technology (AISTS) in Lausanne, Switzerland. He is a 2004 graduate of the Master of Advanced Studies in Sport Administration and Technology (MSA). E-mail: matthias.kaestner@aists.org  相似文献   
145.
Growing acknowledgement that adverse childhood experiences are widespread and can threaten healthy development has led to advocacy for schools to systematically incorporate trauma-sensitive practices and policies. While the background and training of school psychologists would seem to make them the ideal professionals to lead such work, little is known regarding their preparedness to engage in these school-based practices. The current pilot study examines the experiences, education and training, confidence and competence, current and desired roles, and perceived barriers and supports of school psychology trainers, trainees, and practitioners to engage in trauma-informed practices within schools. Results indicated that high majorities reported scant knowledge or competencies across domains of professional practice considered essential to trauma-informed care delivery. Findings and implications are discussed.  相似文献   
146.
Harris V  Onslow M  Packman A  Harrison E  Menzies R 《Journal of Fluency Disorders》2002,27(3):203-13; quiz 213-4, III
Preliminary Phase I and II trials for the Lidcombe Program of early stuttering intervention have found favorable outcomes and that the treatment is safe. Although speech-language pathologists (SLPs) often need to intervene with pre-schoolers' early stuttering, many of these children will recover at some time in the future without such intervention. Consequently, they need to know whether the Lidcombe Program's effect on stuttering is greater than that of natural recovery. Participants were 23 pre-school children who were randomly assigned to either a control group or a treatment group that received the Lidcombe Program for 12 weeks. A repeated measures ANOVA showed no main effect on stuttering for the group (control/treatment), a significant main effect for the measurement occasion (at the start and at the end of the treatment period), and a significant interaction between group and measurement occasion. Stuttering in the treatment group reduced twice as much as in the control group. These results are interpreted to mean that the introduction of the Lidcombe Program has a positive impact on stuttering rate, which exceeds that attributable to natural recovery.  相似文献   
147.
Two experiments were conducted to investigate whether auditory and visual language laterality tasks test the same brain processes for verbal functions. In the first experiment, 48 undergraduate students (24 males, 24 females) completed both an auditory monitoring task and a visual monitoring task, with the Waterloo Handedness Questionnaire administered between the two tasks. The visual task was an analogue of the dichotic listening task used. It was hypothesized that a significant cross-modal correlation would be found, indicating that the dichotic listening task and the visual analogue task do, in fact, test the same brain processes for verbal functions. Results revealed a right ear advantage in the auditory task, a left visual field advantage (LVFA) in the visual task, and a cross-modal correlation of asymmetries of -.09. The LVFA observed in the visual task was replicated in Experiment 2, thus establishing its legitimacy. Results are discussed in relation with the type of processing that might produce such an unexpected finding on the visual task.  相似文献   
148.
The purpose of the present experiment was to describe responding as a function of One-to-Many (OTM) and Many-to-One (MTO) training structures and identify baseline performances correlated with the accuracy level in tests for equivalence class formation. Participants were 42 adults assigned to either the MTO or the OTM groups, trained on 24 baseline relations, and assessed on the emergence of three 9-member equivalence classes. Participants in the MTO group presented similar frequencies of responses to each of the comparisons throughout baseline training. Also, the number of trials required to meet the baseline mastery criterion was negatively correlated with test accuracy. Participants in the OTM group presented more variable frequencies of responses to each of the comparisons (participants tended to select some of the comparisons less often than others at the beginning of the training). In addition, the number of reinforced responses to the node presented as a sample during training was positively correlated with the number of correct responses during testing for the OTM group. The experiment contributed to an in-depth stimulus control analysis of baseline and test performances, and its results have implications for understanding potential sources of variability between the training structures.  相似文献   
149.
Bilingual preschoolers often perform better than monolingual children on false‐belief understanding. It has been hypothesized that this is due to their enhanced executive function skills, although this relationship has rarely been tested or supported. The current longitudinal study tested whether metalinguistic awareness was responsible for this advantage. Further, we examined the contributions of both executive functioning and language ability to false‐belief understanding by including multiple measures of both. Seventy‐eight children (n = 40 Spanish‐English bilingual; age M = 49.29, SD = 7.38 and, n = 38 English monolingual; age M = 47.75, SD = 6.86) were tested. A year later the children were tested again (n = 22 bilingual, n = 25 monolingual). The results indicated that language and executive function (inhibitory control) at time 1 were related to false belief in monolinguals at time 2. In contrast, bilinguals' metalinguistic performance at time 1 was the sole predictor of false belief at time 2. The different linguistic and cognitive profiles of monolinguals and bilinguals may create different pathways for their development of false‐belief understanding. A video abstract of this article can be viewed at: https://youtu.be/vILn2gKjFxw  相似文献   
150.
Robust evidence exists for the shape bias, or children's tendency to extend novel names and categorize objects more readily on the basis of shape than on other object features. However, issues remain about the conditions that affect the shape bias and its importance as a linguistic device. In this research, we examined how type of instruction (common noun naming, proper noun naming, same kind, and goes with), animacy of objects (animate, inanimate), and dimensionality of objects (two‐dimensional, three‐dimensional) affect the shape bias in 3‐ to 6‐year‐old children. Overall, all children showed strong use of the shape bias with categorization (same kind, goes with) instructions, the former in line with the shape‐as‐cue theory. Additionally, the shape bias was quite robust in the inanimate condition, regardless of type of instruction or dimensionality of objects. However, in the animate condition, a proper noun naming instruction coupled with an animate object cue reduced the shape bias across both two‐ and three‐dimensional objects. Implications of these findings are presented.

Highlights

  • This study assessed the “shape bias,” a linguistic strategy young children routinely use when confronted with the task of extending a novel name from one object to another.
  • Novel name extension and categorization tasks were used in this study.
  • Shape bias was affected by the type of instructions, animacy of objects, and dimensionality of objects.
  相似文献   
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