Influence of African American elders' age stereotypes on their cardiovascular response to stress

Although it has been shown that White elders are vulnerable to the influence of age stereotypes, it was not known whether this effect applied to African American elders. In the present study, African American elders were randomly assigned to negative or positive implicit-age-stereotype groups. Compared to participants in the positive age-stereotype group, those in the negative age-stereotype group demonstrated significantly more elevated cardiovascular response to stress, as measured by blood pressure and heart rate following mental challenges. These results suggest that negative age stereotypes generate a susceptibility to stress among African American elders, whereas positive age may provide them with a defense against this stress.     

Exploratory and confirmatory factor analyses of the structured interview for disorders of extreme stress

Two studies were conducted to provide the first empirical examination of the factor structure of a revised version of the clinically derived Structured Interview for Disorders of Extreme Stress, a structured interview designed to assess associated features of posttraumatic stress disorder (PTSD) thought to be related to early onset, interpersonal, and prolonged traumatic exposure. Five factors representing demoralization, somatic dysregulation, anger dysregulation, risk/self-harm, and altered sexuality were derived from an exploratory factor analysis conducted with adult trauma survivors in substance abuse treatment. They provided a good fit in a confirmatory factor analysis conducted in a second study with a nonclinical sample of ethnoculturally diverse, socioeconomically disadvantaged, incarcerated adults. Evidence of the derived factors' internal consistency and convergent and discriminant validity is reported. Evidence supported the association of these factors with interpersonal trauma (physical and/or sexual), its repetition, and its earlier onset. Implications for clinical assessment of complex posttraumatic stress disorder are discussed.     

Exploring the personality trait of self-monitoring on technology usage of Web portals.

This study explores the personality trait of self-monitoring in Web portal usage by employing the extended theory of planned behavior (TPB) model of Pavlou and Fygenson. A survey of 254 Internet Web portal users was conducted to test the hypothesized model. The results show that our data supported all five individual causal paths postulated in this study. Further, the construct of self-monitoring plays a moderating role in Web portal usage; three of the five moderating hypotheses are supported. Based on the research findings, conclusions and implications are discussed.     

Antecedents of virtual community satisfaction and loyalty: an empirical test of competing theories.

The rapid growth of virtual communities (VCs) on the Internet raises important research questions regarding the antecedents of satisfaction and loyalty in VCs. This study compared the technology acceptance model (TAM), Seddon Information Systems Success Model (Seddon model), and an integrated model (combining the TAM and Seddon model) to examine which model best helps to predict user satisfaction with VCs. Using a structural equation model, data collected from 198 community members were used to compare the three models in terms of overall model fit, explanatory power, and path significance. The findings show that two TAM components (perceived usefulness and ease of use) are determinants of user satisfaction with VCs. This study also found the influence of quality-perception dimensions (e.g., system and information quality) on user satisfaction to be significant. Additionally, this study found general support for user satisfaction as a determinant of loyalty in VCs. Finally, an integrated model, combining the TAM and Seddon model, provided better explanatory power than either the TAM or the Seddon model alone. Finally, this study discusses the implications of these findings and offers directions for future research.     

上海市大学生网络行为偏好的实证研究

以上海市6所高校的565名大学生作为被试,采用定量与定性相结合的方法,探讨不同年级、不同性别、文理科大学生的网络行为偏好.结果表明,在信息获得偏好得分上,文科生显著高于理科生,男、女生得分差异不显著,存在显著的年级与学科交互作用,随年级增加信息获得偏好得分呈递增趋势;在游戏偏好得分上,男生显著高于女生,理科生显著高于文科生,随年级增加游戏偏好得分呈递减趋势,性别与学科,年级与学科均存在显著交互作用.交往偏好得分的性别、专业、年级的主效应不显著,但性别与学科有非常显著的交瓦效应.     

中学生写作文本形成能力的发展特点

从一所普通中学六个年级随机选取801名被试,使用自编测验研究了中学生写作文本形成能力的发展特点,结果发现：（1）中学生写作文本形成能力起点较高,初三年级是其基本形成的关键期;（2）中学生写作文本形成能力在高中阶段发展平缓;（3）中学生写作文本形成能力分维度的不同方面发展不均衡,较高水平方面受到认知加工容量、概括水平和抽象逻辑思维水平等心理因素的制约;（4）中学生写作文本形成能力存在性别差异,女生优于男生。     

时间顺序与时间距离对语言理解的影响:进一步的证据

探讨时间顺序和时间距离对语言理解的影响,包括2个实验.实验采用关系再认范式(relation-recognition paradigm)和句子-探测再认范式(sentence-probe-recognition paradigm).实验一探讨探讨在简单句条件下,时间顺序对不同频率事件理解的作用;实验二探讨在复句条件下时间顺序与时间距离对语言理解的影响.2个实验结果一致表明,在语言理解过程中,存在对将来取向(顺时序)的事件进行优先加工处理.时间距离对语言理解的影响取决于不同时距的事件能否整合成情景模型.     

流畅性对自然概念类别检索的影响

探讨不同转换条件下,流畅性对自然概念类别检索的影响.实验1探讨自由转换条件下,流畅性对自然概念类别检索的影响.实验2探讨限制转换条件下,流畅性对自然概念类别检索的影响.结果表明:两种转换条件下,对熟悉性流畅性一致类别的检索时间策略主要受到根据熟悉性形成的知晓感的调节和监控.对熟悉性流畅性不一致的类别,知晓感的形成主要受流畅性的影响,并以此来控制和调节检索时间策略.     

教学效能感与教师工作压力及工作倦怠的关系

采用问卷法对728名中学教师的工作压力、教学效能感对其工作倦怠的影响进行研究,结果发现:工作压力不仅直接导致工作倦怠,还通过影响教师的教学效能感从而导致工作倦怠;教学效能感是工作压力和工作倦怠之间的部分中介.作用路径为:工作压力直接和通过降低一般教学效能感导致情绪衰竭,工作压力直接和通过降低一般教学效能感与个人教学效能感导致人格解体,工作压力通过降低个人教学效能感导致成就感低.