北京地区中学生学习策略水平的调查研究

本研究采用中学生学习策略量表测查了542名中学生的学习策略使用情况。结果表明：(1)中学生学习策略量表有着较高的信度和效度,分量表项目间有良好的一致性。(2)从初三到高三,学生的学习策略水平没有表现出随年级增长而提高的趋势,甚至在时问管理、焦虑、信息加工等分量表方面有下降的表现。(3)女生在态度,动机,学习辅助和自我测试分量表上的得分明显高于男生;男生在信息加工分量表上的得分明显高于女生。(4)优差生在学习辅助和自我测试两个分量表上的得分没有明显差异,在其余分量表上均有显著差异。     

Subordinate swordtail males escalate faster than dominants: A failure of the social conditioning principle

In previous studies we have shown that subordinate swordtail males (Xiphophorus helleri) direct more bites to their mirror image than dominants and, in confrontations with strange dominant males, approach the opponent more often during the pre-escalation period of fights. Consequently, we predicted that fights between two omega-males should escalate faster than fights between two alpha-males. Indeed, in omega-omega fights preescalation periods were shorter and biting rates were higher than in alpha-alpha fights before the fights escalated from the first retaliation bite onward. Another new observation was that in omega-alpha confrontations the first bite in the pre-escalation period was executed more often by the omega-male and there was also a tendency to bite more compared to the alpha-male in that stage of the encounters. We conclude that sub-ordinate males escalate faster and fight more offensively prior to escalation than do dominant males. The results cannot be explained by the “social conditioning principle.” On the ultimate level moderate costs of losing and high benefits of winning a fight, constraints on continued growth after maturing, short life-expectancy, and habitat saturation are probably factors promoting the offensive tactics of subordinate males. © 1993 Wiley-Liss, Inc.     

Combining whole-school and targeted programs for the reduction of bullying victimization: A randomized,effectiveness trial

Despite the extensive evaluation of school-based interventions for bullying, victimization remains a significant problem in schools. Bullying victimization is significantly predicted by contextual (school-related) factors. As a consequence whole-school programs have been commonly used to prevent and reduce bullying victimization. Evidence also points to individual risk factors (such as emotional distress) in predicting victimization, yet programs to prevent bullying victimization by changing these individual risks are far less developed. Few studies have approximated “real-world” implementation conditions in their trials. The current effectiveness trial evaluated the combination of a whole-school program designed to prevent bullying perpetration and victimization together with a targeted intervention for at-risk students, teaching them individual and dyadic strategies to reduce their anxiety and manage victimization, allowing schools some latitude to implement programs as they typically would. Students from Grades 3 and 4 (N = 8,732) across 135 schools were randomly assigned to one of four conditions: combined intervention; whole-school intervention only; individual intervention only; and care as usual. Victimization decreased significantly and similarly across all four conditions at 12 and 24 months following baseline. Similar reductions and failure to discriminate conditions were found on other key constructs: anxiety; bullying perpetration; and depression. Possible reasons for the failure to demonstrate victimization prevention differences and lessons learned from this large, effectiveness trial are considered.     

Examining the Association Between Racial Identity Attitudes and Coping With Racism-Related Stress

The authors examined the association between racial identity attitudes and coping with racism-related stress among Asian, Black, and Latinx college students (N = 195). Results of the canonical correlation analysis indicated that higher scores on a combination of all racial identity attitudes were significantly associated with greater active coping for Black and Latinx students. Among Asian students, the authors found that higher scores on conformity, dissonance, and immersion-emersion racial identity attitudes were significantly associated with greater avoidant coping. Los autores examinaron la asociación entre las actitudes de identidad racial y el afrontamiento del estrés relacionado con el racismo en estudiantes universitarios asiáticos, negros y latinxs (N = 195). Los resultados del análisis de correlación canónica indicaron que unos valores más altos en la combinación de todas las actitudes de identidad racial estaban asociados significativamente a un mayor afrontamiento activo en estudiantes negros y latinxs. En estudiantes asiático-americanos, los autores hallaron que unos valores más altos en las actitudes de identidad racial de conformidad, disonancia e inmersión/emersión estaban asociados significativamente a un mayor afrontamiento evasivo.     

A Classification Framework using a Diverse Intensified Strawberry Optimized Neural Network (DISON) for Clinical Decision-making

A novel classification framework for clinical decision making that uses an Extremely Randomized Tree (ERT) based feature selection and a Diverse Intensified Strawberry Optimized Neural network (DISON) is proposed. DISON is a Feed Forward Artificial Neural Network where the optimization of weights and bias is done using a two phase training strategy. Two algorithms namely Strawberry Plant Optimization (SPO) algorithm and Gradient-descent Back-propagation algorithm are used sequentially to identify the optimum weights and bias. The novel two phase training method and the stochastic duplicate-elimination strategy of SPO helps in addressing the issue of local optima associated with conventional neural networks. The relevant attributes are selected based on the feature importance values computed using an ERT classifier.Vertebral Column, Pima Indian diabetes (PID), Cleveland Heart disease (CHD) and Statlog Heart disease (SHD) datasets from the University of California Irvine machine learning repository are used for experimentation. The framework has achieved an accuracy of 87.17% for Vertebral Column, 90.92% for PID, 93.67% for CHD and 94.5% for SHD. The classifier performance has been compared with existing works and is found to be competitive in terms of accuracy, sensitivity and specificity. Wilcoxon test confirms the statistical superiority of the proposed method.     

Complications travel: A cross‐cultural comparison of the proportion of complications as a verbal cue to deceit

Verbal lie detection tools are almost exclusively examined in Western Europe and North America, but practitioners worldwide show interest in such tools. Because cultural differences in the efficacy of such tools may occur, it is important to examine their efficacy in different cultures. In this article, we focus on proportion of complications, which in previous research was more diagnostic than “total details” in two British samples and in three samples that each included Hispanic, Russian, and South Korean participants. In the present article, we merged the three non‐British samples and analysed the data by presenting them for each cultural group separately. Truth tellers disclosed the details of a trip away they had made, whereas liars fabricated such details. Proportion of complications discriminated truth tellers from liars in all three groups and was consistently a better indicator of veracity than total details. Implications of the findings are discussed.     

污名化对被污名个体人际互动的影响

污名是指个体所具有不受欢迎的特征, 这种特征会导致个体在一定社会背景下被主流文化群体贴负性标签、贬低、侮辱而遭受到污名化。污名化对个体或群体本身会有消极影响, 不仅会使个体遭受到来自他人的歧视、排斥或拒绝等这些直接作用于自身的外部影响, 还会进一步消极影响被污名个体在人际互动中的表现和行为反应。被污名个体与主流文化群体之间的消极互动又会进一步加剧主流文化对被污名个体或群体的排斥, 形成恶性循环。从被污名个体的角度出发, 有助于更加深入地探讨污名化对被污名个体人际互动方面的影响以及被污名个体采取的应对方式。     

Sociocultural influences on adolescent boys' body image and body change strategies

Society provides messages about how people should ideally look and previous research has indicated these messages, both the actual messages provided and the perception of the message, influence body image. Research into male body image has shown males are concerned with having a lean and muscular body and as such, may want to decrease fat and increase their muscles. This paper explored the influence of a range of messages from parents, peers, and the media on a number of different measures of 362 adolescent boys’ body image and body change strategies. Specifically, messages about shape, food, exercise, losing weight and increasing muscles were explored in relation to satisfaction with weight and muscles, and the use of strategies to decrease weight and increase muscles. The findings indicated that parental messages were the strongest influence on body image and that parents, the media, and to a lesser extent messages from male friends were the strongest predictors of body change strategies.     

中学生不同焦虑水平与认知策略研究

使用测试方式对中学生的焦虑水平和认知策略之间的关系进行了研究。结果发现,在7钟认知策略中能力认识、失败归因、命运控制和社会关系4种认知策略在三个级别的焦虑组之间存在显著差异,焦虑水平高的人倾向于使用否定自身能力、选取失败、悲惨宿命论和消极社会关系认知策略。除成就认识外．其他认知策略不存在性别差异,女性倾向于产生低成就认知。     

Children's perceptions and experiences of care giving: A focus group study

The stress of care giving for spouses and adult children has been extensively documented in the empirical literature. More recently attention has been paid to children's involvement in family care giving. Qualitative studies in the social welfare field have highlighted the social restrictions caring places upon children. There remains a need, however, to understand what children are thinking and feeling in an effort to cope with their care-giving demands. This study used a focus group methodology and individual interviews to explore the experiences of 17 young carers aged between 10 and 16. Thematic analysis was employed to identify themes relating to the nature of stressors, their appraisal of them, and the coping strategies they use to manage the task of caring.