儿童基本心理需要满足对上网行为和上网情感的影响：一项追踪研究

在自我决定理论的框架下,对467名3~5年级小学生进行为期12个月的追踪调查,以探讨儿童基本心理需要满足对其上网行为和上网情感发展的影响。结果发现：（1）3~5年级儿童的上网时间、上网积极情感和上网消极情感在一年间存在着显著减少的发展趋势;（2）基本心理需要满足能够预测上网积极情感的增加和上网消极情感的减少,对上网时间发展的预测不显著;（3）自主、胜任和关系这三个维度对儿童上网情感的发展都起着重要作用。     

3～5岁幼儿暗示感受性与压力的关系:抑制性控制的调节效应

本研究在已有研究的基础上进一步探讨认知因素与外源性因素对儿童暗示感受性的交互作用。文章通过在访谈过程中设置不同水平的压力反馈,选用自编的儿童视觉暗示感受性测试材料及一系列抑制性控制实验任务,考查了儿童抑制性控制对压力和暗示感受性关系的调节作用。结果表明:(1)3～5岁幼儿的暗示感受性随着年龄的增长显著降低。(2)压力影响3～5岁幼儿的暗示感受性水平,压力越大,儿童的暗示感受性越强。(3)抑制性控制对压力与暗示感受性的关系具有显著的调节作用,压力对暗示感受性的影响会随着幼儿抑制性控制水平的提高而不断减弱。对于抑制性控制水平低的儿童来说,压力能正向预测其暗示感受性;但对于抑制性控制水平高的儿童来说,压力并不能显著预测其暗示感受性。     

网络测验和纸笔测验的测量不变性研究：以生活满意度量表为例

以生活满意度量表为例,运用实证性因素分析,考察在中国文化下网络测验和传统纸笔测验之间的测量不变性。结果显示,网络测验和纸笔测验之间存在弱不变性,即网络测验和纸笔测验有着相同的测量单位;但网络测验和纸笔测验只存在部分的强不变性和部分的严格不变性,测验实施环境对结果的影响不可忽视。该研究表明,恰当设计的网络测验是可靠的,同时还提示,当一个测验在不同情境下运用时,检验测量不变性十分必要     

Interconnecting Race and Gender Relations: Racism, Sexism and the Attribution of Sexism to the Racialized Other

This article analyzes the way that attitudes about gender and race relations are interconnected. Based on a survey study conducted in Switzerland with a sample of 273 Swiss nationals (125 men and 148 women), it shows that the attribution of a higher level of sexism to “racialized Others” than to Swiss individuals is a racist process resulting in the justification and naturalization of the ordinary Swiss sexism seen in the gendered division of labor. However, this study also shows that the attribution of a higher level of sexism to the Other can be countered by simultaneously adopting both feminist and non-racist attitudes.     

Coping with examinations: Exploring relationships between students' coping strategies,implicit theories of ability,and perceived control

Background Relatively little is known about the contribution of students' beliefs regarding the nature of academic ability (i.e. their implicit theories) on strategies used to deal with examinations. Aims This study applied Dweck's socio‐cognitive model of achievement motivation to better understand how students cope with examinations. It was expected that students' implicit theories of academic ability would be related to their use of particular coping strategies to deal with exam‐related stress. Additionally, it was predicted that perceived control over exams acts as a mediator between implicit theories of ability and coping. Sample Four hundred and ten undergraduate students (263 males, 147 females), aged from 17 to 26 years old (M = 19.73, SD = 1.46) were volunteers for the present study. Methods Students completed measures of coping, implicit theories of academic ability, and perception of control over academic examinations during regular classes in the first term of the university year. Results Multiple regression analyses revealed that incremental beliefs of ability significantly and positively predicted active coping, planning, venting of emotions, seeking social support for emotional and instrumental reasons, whereas entity beliefs positively predicted behavioural disengagement and negatively predicted active coping and acceptance. In addition, analyses revealed that entity beliefs of ability were related to coping strategies through students' perception of control over academic examinations. Conclusions These results confirm that exam‐related coping varies as a function of students' beliefs about the nature of academic ability and their perceptions of control when approaching examinations.     

Testing Differential Mediation Effects of Sub-dimensions of Political Skills in Linking Proactive Personality to Employee Performance

Purpose  

The purpose of this research was to examine the mediating roles of political skill dimensions (i.e., networking ability, interpersonal influence, social astuteness, and apparent sincerity) in linking employees’ proactive personality and supervisor-rated in-role performance and altruism.     

Flaws of drug instrumentalization

The adaptive use of drugs, or "drug instrumentalization," is presented as a reality that the scientific literature has largely ignored. In this commentary, we demonstrate why this concept has limited value from the standpoint of nosology, why it should not be viewed as "adaptive," and why it has dangerous implications for policy and public health efforts.     

Onset of plasticity in a Σ = 5 GaAs compliant structure

Compliant structures have been fabricated in which a thin GaAs layer (thickness between 10 and 20nm) was bonded on top of a GaAs substrate with a large twist angle (about 37). This twist angle value was chosen so that the energy of the boundary (coincident boundary of type =5 (001)) was minimized. The structure of the interface was characterized and the onset of plasticity in such a compliant substructure was investigated using nanoindentation that allowed the low-load deformation regime to be observed. The results are compared with those obtained under the same conditions on a GaAs bulk substrate alone. No plastic zone was observed by transmission electron microscopy in the compliant structure under loads below 0.25mN while, under the same loads, plastic deformation was observed in the bulk substrate. For higher loads (2mN), plastic-flow enhancement was observed in the compliant structure. The results are discussed in the light of the arrangement of dislocations observed in the plastic zones.