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951.
In the present study, we examined whether a peripheral size-singleton distractor that matches the target–distractor size relation can capture attention and disrupt central target identification. Three experiments consistently showed that a size singleton that matches the target–distractor size relation cannot capture attention when it appears outside of the attentional window, even though the same size singleton produces a cuing effect. In addition, a color singleton that matches the target color, instead of a size singleton that matches the target–distractor size relation, captures attention when it is outside of the attentional window. Thus, a size-relation-matched distractor is much weaker than a color-matched distractor in capturing attention and cannot capture attention when the distractor appears outside of the attentional window. 相似文献
952.
Rebecca P. Ang Vivien S. Huan Wan Har Chong Lay See Yeo Carol Balhetchet Suzanne L. Seah 《Journal of child and family studies》2014,23(6):1027-1033
This study examined the relationship between early separation from parents and psychopathic traits in a diverse Asian community sample of at-risk adolescents. Specifically, we tested whether gender could moderate this relationship. Data on 113 at-risk adolescents were provided by their parents who participated in this study. These adolescents were between the ages of 11 and 16 years (M = 14.35; SD = 1.10). Parents provided ratings on psychopathic traits with respect to their adolescent and they also provided information on demographic variables, psychosocial and familial information. Results showed that gender moderated the link between early separation from parents and adolescent psychopathy. As hypothesized, boys who experienced early separation from parents were associated with significantly higher levels of psychopathic traits compared with boys who did not experience early separation from parents. Girls who experienced and who did not experience early separation from parents had levels of psychopathic traits that were not significantly different from each other. These findings suggest that boys appear to be more vulnerable to the negative effects of early separation from parents and early emotional parental deprivation. There are important implications of these findings for both researchers and practitioners with respect to attempting to ameliorate the negative trajectory associated with psychopathy. It is critical to pay attention to and work with children and adolescents, especially boys, who have had early disruption to parental caregiving arrangements. Additionally, it is equally important to work with to-be adoptive or foster parents on how to handle and support potentially emotionally damaged children. 相似文献
953.
题组作为众多测验中的一种常见题型,由于项目间存在一定程度的依赖性而违背了局部独立性假设,若用项目反应模型进行参数估计将会出现较大的偏差.题组反应理论将被试与题组的交互作用纳入到模型中,解决了项目间相依性的问题.笔者对题组反应理论的发展、基本原理及其相关研究进行了综述,并将其应用在中学英语考试中.与项目反应理论相对比,结果发现:(1)题组反应模型与项目反应模型在各参数估计值的相关系数较强,尤其是能力参数和难度参数;(2)在置信区间宽度的比较上,题组反应模型在各个参数上均窄于项目反应模型,即题组反应模型的估计精度优于项目反应模型. 相似文献
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以144名大学生为被试,使用关系复杂性变化的三种虚拟外星生物实验材料,创设功能预测任务和自由分类、限定分类任务,探查关系复杂性和分类方式对个人关系类别间接性学习的影响.结果发现:(1)随着关系复杂性的增高,各学习阶段下,三种学习材料功能预测成绩彼此间均无显著差异;(2)关系复杂性和分类方式对个人关系类别间接性学习的分类结果存在交互影响作用,具体表现为,关系复杂性较低时自由分类和限定分类结果的杰卡德相似性无显著差异,关系复杂性较高和高时限定分类极其显著高于自由分类,自由分类方式下,关系复杂性不同的三种学习材料间差异不显著,限定分类方式下,关系复杂性较高和高两种学习材料分类结果的杰卡德相似性间无显著差异,但均极其显著高于关系复杂性较低的学习材料. 相似文献
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Social Media as Social Capital of LGB Individuals in Hong Kong: Its Relations with Group Membership,Stigma, and Mental Well‐Being
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Eddie S. K. Chong Yin Zhang Winnie W. S. Mak Ingrid H. Y. Pang 《American journal of community psychology》2015,55(1-2):228-238
Social media are found to facilitate social information exchange among lesbian, gay, and bisexual (LGB) individuals who are subjected to social stigma. This study tested the protective role of LGB‐tailored social media uses and gratifications in promoting LGB group membership, which we hypothesized to reduce LGB stigma and enhance mental health among LGB individuals in Hong Kong. Based on a sample of 233 Chinese LGB individuals in Hong Kong, structural equation modeling showed evidence for our hypotheses, χ(df=62)2 = 88.20, GFI = 0.95, CFI = 0.98, NNFI = 0.98, SRMR = 0.07, RMSEA = 0.04. Community surveillance, identity expression, and emotional support on social media may promote mental health by instilling a sense of group membership and reducing stigma. Social media may build camaraderie and bolster resilience among LGB individuals that may otherwise be difficult in conservative regions. 相似文献
960.
Masahiko Nishijima Makoto Matsuura Yan Zhang Akihiro Makino 《Philosophical Magazine Letters》2015,95(5):277-284
Microstructure of a nanocrystalline soft magnetic Fe85Si2B8P4Cu1 alloy (NANOMET®) was investigated by the state of the art spherical aberration-corrected TEM/STEM. Observation by TEM shows that the microstructure of NANOMET® heat treated at 738 K for 600 s which exhibits the optimum soft magnetic properties has homogeneously distributed bcc-Fe nanocrystallites with the average grain size of 30 nm embedded in an amorphous matrix. Elemental mappings indicate that P is excluded from bcc-Fe grains and enriched outside the grains, which causes to retard the grain growth of bcc-Fe crystallites. The aberration-corrected STEM-EDS analysis with the ultrafine electron probe successfully proved that Cu atoms form nanometre scale clusters inside and/or outside the bcc-Fe nanocrystallites. 相似文献