Comparing standardized coefficients in structural equation modeling: a model reparameterization approach

We propose a two-stage method for comparing standardized coefficients in structural equation modeling (SEM). At stage 1, we transform the original model of interest into the standardized model by model reparameterization, so that the model parameters appearing in the standardized model are equivalent to the standardized parameters of the original model. At stage 2, we impose appropriate linear equality constraints on the standardized model and use a likelihood ratio test to make statistical inferences about the equality of standardized coefficients. Unlike other existing methods for comparing standardized coefficients, the proposed method does not require specific modeling features (e.g., specification of nonlinear constraints), which are available only in certain SEM software programs. Moreover, this method allows researchers to compare two or more standardized coefficients simultaneously in a standard and convenient way. Three real examples are given to illustrate the proposed method, using EQS, a popular SEM software program. Results show that the proposed method performs satisfactorily for testing the equality of standardized coefficients.     

有尊严的幸福生活何以可能?

为人的尊严和幸福进行论证和申辩,这是哲学不可推卸的使命。近年来在我国,人的尊严和幸福越来越成为社会各界热烈讨论的话题,有尊严的幸福生活第一次被写进了政府工作报     

Effects of Internet use on college students' political efficacy.

This study examines the relationship between three types of Internet use (information, entertainment, and interactive contacts) and two types of political efficacy (external and internal) among U.S. college students. Information related Internet use and interactive contacts predict college students' internal political efficacy. An unexpected finding was that visiting public agency sites negatively influenced college students' external political efficacy. This implies that the quality of current public sites is below the expectation of college students and that respondents who visited those sites might develop political cynicism. This study also reveals that online news sites are becoming a primary news source for college students.     

广东省汕头市学习困难儿童生理、心理、社会状况调查研究

目的了解城区学习困难儿童有关生理、心理、社会状况的特点,探讨预防和治疗学习困难儿童的方法,促进其身心的的健康发展。方法在汕头市三所普通小学四、五年级中抽取学习困难儿童和非学习困难儿童各93名,用自制调查表分别让他们进行自测调查比较。结果学习困难儿童和非学习困难儿童在男女比例和生理因素方面无明显差异。结论心理因素和社会因素可能是造戍智力正常的儿童学习困难的主要原因．     

Comparing the self-concepts of Hong Kong Chinese adults with visible and not visible physical disability

In the present study, the authors evaluated the self-concept levels of Hong Kong Chinese adults with visible and not visible physical disabilities. Fifty-five Hong Kong Chinese (22 men and 33 women) aged 18 to 55 (M = 39.50, SD = 10.21) participated-20 without physical disabilities (control group), 20 with visible physical disabilities, and 15 with physical disabilities that were not visible. All the participants responded to the Self-Concept Questionnaire for Hong Kong Chinese With Physical Disabilities (SCQPD; S. F. Tam & D. Watkins, 1997). The group with visible disabilities scored significantly lower in self-concept than did the control group and the group with disabilities that were not visible. There were also significant differences between specific facets of self-concept for people with visible and not visible disabilities. It was interesting to find that there was no significant difference in self-concept levels between the not visible group and the control group. The implications for rehabilitation and social services for these various groups are discussed.     

Consistent and variable practice conditions: effects on relative and absolute timing

The authors conducted the present experiments to resolve the discrepancy between studies in which relative-timing learning has been found to be enhanced by consistent practice conditions and contextual interference experiments in which relative-timing learning has been found to be enhanced more by random practice than by blocked practice. There were 40 participants in Experiment 1 and 48 in Experiment 2. The results of Experiment 1 extended previous findings: The learning of the relative-timing pattern was systematically enhanced by the degree to which the practice conditions promoted movement consistency (constant > blocked > serial > random). Experiment 2 provided evidence that the discrepancy between the relative-timing effects in the 2 groups of studies was a product of the way in which relative-timing goals and feedback were presented. When the feedback was presented as segment times, random practice resulted in generally more stable relative-timing patterns during acquisition than blocked practice did. Thus, in both experiments, the learning of the relative-timing pattern was enhanced by more stable relative-timing conditions during acquisition. Absolute-timing learning, as indexed by the transfer tests, was enhanced by serial or random practice as compared with constant or blocked practice, and was relatively unaffected by feedback conditions directed at the relative-timing pattern. In terms of motor programming theory, those findings are taken as additional evidence for the disassociation of memories supporting generalized motor program (GMP) performance, as indexed by relative timing, and parameter performance, as indexed by absolute timing.     

The Age and Gender Effect on Four Forms of Peer Victimization among Chinese Children and Adolescents

Applied Research in Quality of Life - This study is the first to examine the effects of age and gender on different forms of peer victimization among local Chinese schoolchildren in Hong Kong. The...     

The Significance of Family Structure in Internalizing (Anxious/Depressed) and Externalizing (Aggressive/Delinquent) Problems among Chinese Adolescents

The present pioneering study investigated the differences across various types of family structure among Chinese adolescents with proactive and reactive aggression. It aimed at providing frontline social workers and family therapists with inspirations for designing suitable interventions for adolescents with specific subtypes of aggressive behavior from different family structure backgrounds. After completing an online survey including the Reactive and Proactive Aggression Questionnaire (RPQ) and the subscales of the Child Behavior Checklist – Youth Self-report (CBCL-YSR) on aggressive behavior, delinquent behavior, and anxious/depressed symptom, 520 out of 13,338 Chinese adolescents aged 11 to 18 were randomly selected and stratified based on the types of family structure (intact family, single father family, single mother family, stepfather family, and stepmother family). Expectedly, boys elicited more proactive aggression, delinquent behaviors, and aggressive behaviors than girls. Besides, significant cross-structural differences were found between children from stepmother family, who showed more proactive aggression, anxious/depressed symptoms, aggressive behaviors, and delinquent behaviors, and those from intact family regardless of gender. The interaction effects between gender and family structure were significant for reactive aggression, anxious/depressed behavior, and aggressive behavior. An interaction effect showed boys from stepmother families were more reactively aggressive than those from intact families. In addition, more anxious/depressed symptoms were found in boys from stepmother family than those from intact and single mother families. In conclusion, the impacts of family structure on proactive aggression and delinquent behavior are not gender specific, but the impacts on reactive aggression and anxious/depressed behavior are only specific to boys.

     

The dynamics of success and failure: how post-behaviour evaluations relate to subsequent exercise intentions and behaviour

Objective: Exercise behaviour change involves multiple experiences with success and failure. The Model of Action Phases (MAP) offers a dynamic account of how success and failure influence both immediate evaluations and future decisions and actions. However, predictions from the MAP have not been formally tested.

Design: A longitudinal daily diary study was used to examine how post-behaviour evaluations of exercise success and failure influence subsequent exercise intentions and behaviour. Participants (N = 104) set exercise goals, and then kept a daily online exercise diary for four weeks.

Main outcome measures: Participants self-reported exercise behaviour, affective response to exercise, self-evaluations after success or failure at following through on intentions to exercise, and intentions to exercise in the next week.

Results: Multilevel modelling revealed significant within- and between-participant relationships among post-behaviour evaluations, intentions and subsequent behaviour. Findings supported MAP-derived predictions about how success and failure at exercise are associated with feelings about exercise and the self, and inform subsequent exercise intentions and behaviour.

Conclusion: Positive post-behaviour evaluations of success or failure may stabilise positive intentions and aid maintenance of exercise behaviour. Implications of these MAP-based findings for intervention design are discussed.     

Effects of dilemma type,language, and emotion arousal on utilitarian vs deontological choice to moral dilemmas in Chinese–English bilinguals

The present study examines how dilemma type (personal or impersonal moral dilemma), language (native or foreign) and emotion arousal to a dilemma could affect Chinese–English bilinguals' deontological vs utilitarian moral choices regarding 39 moral dilemmas. How emotion arousal plays a mediating role in the effects of dilemma type and language on moral choices is also investigated. As shown in multilevel analyses, participants made fewer utilitarian choices for personal dilemmas than impersonal dilemmas. Although emotion arousal of dilemmas significantly mediated this effect of dilemma type, the indirect effect of dilemma type through arousal on moral choices was inconsistent with the direct effect of dilemma type on moral choices. For the effect of language, participants made more utilitarian choices in the Footbridge (personal) dilemma that was presented in foreign language than in native language. However, this effect was not mediated by arousal, suggesting that it could not be attributed to the emotion‐reducing effect of foreign language. Moreover, there was no language effect on moral choices in analyses that included all 39 dilemmas or only 22 personal dilemmas, indicating the need in future research for further identifying the potential mediators that trigger the foreign language effect on moral choices.