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831.
The authors examined the hypothesized influence of maternal and paternal hostility on youth delinquency over time. The investigation addressed significant gaps in earlier research on parental hostility, including the neglect of father effects, especially in African American families. Using prospective, longitudinal data from community samples of European American (n = 422) and African American (n = 272) 2‐parent families, the authors examined the independent effects of paternal and maternal hostility on youth delinquency. The results indicated that paternal hostility significantly predicted relative increases in youth delinquent behaviors above and beyond the effects of maternal hostility; conversely, maternal hostility did not predict youth delinquency after controlling for paternal hostility. Multiple‐group analyses yielded similar results for both ethnic groups and for boys and girls. These results underscore the importance of including both parents in research on diverse families. Neglecting fathers provides an incomplete account of parenting in relation to youth development. 相似文献
832.
Jeannette Oostlander Stefan T. Güntert Theo Wehner 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2014,25(6):1368-1387
This study examines the development of volunteer satisfaction within the framework of self-determination theory (SDT). Therewith, autonomy-supportive leadership—as an influential part of the organizational context—is studied as an antecedent of volunteer satisfaction. The hypothesized model suggests that the link between autonomy-supportive leadership and volunteer satisfaction is serially mediated by general need satisfaction and autonomous motivation. Volunteers (N = 113) working closely together with their supervisors completed a paper-based questionnaire. As predicted, both general need satisfaction and autonomous motivation serially mediated the link between autonomy-supportive leadership and volunteer satisfaction. The results indicate that autonomy-supportive leadership is an important factor of the organizational context, increasing both volunteers’ autonomous motivation and satisfaction. Practical implications for volunteering organizations, as well as implications for further research, are discussed. 相似文献
833.
Kelvin E.Y. Low 《Journal of historical sociology》2014,27(1):75-102
This paper broadens the analytical contours of Chinese migration by employing the paradigm of histoire croisée. By comparing three connected episodes within the nineteenth and twentieth centuries: (1) British expansionism; (2) Kuomintang activities and British migratory legislation; and (3) the interconnection of the slump in China's silk industry, the anti‐marriage movement, and the intertwinement of historiographies of China and Singapore – the entangled histories approach offers analytic purchase for which Chinese migration can be scrutinised with attention paid to the interpellations of historical contingencies and economic relations. The paper therefore analyses broader sociocultural and political patterns that inflect migratory flows, and considers the significance of how migratory historiography bears upon social memory of Chinese female migrants. 相似文献
834.
This study addresses how journalists respond to public relations (PR) practitioners in co-creating value for their audiences. The co-creation perspective is conceptualized by synthesizing extant literature from public relations and relationship marketing, including cultivation strategies in organization-public relationships studies, two-way symmetrical model in excellence theory, intereffication model, service-dominant (S-D) logic of co-creation in marketing, and customer engagement theories. Using long-interview technique with 18 journalists, the study investigates how journalists perceive media relations activities of PR practitioners from a value co-creation dimension. A new theoretical model titled press engagement behavior (PEB) with sub-dimensions in press participation behavior (PPB) and press citizenship behavior (PCB) is proposed. A thirty-item scale is proposed to guide future study on scale development and validation. The proposed new model can explain the context of journalist engagement, enriching the operational value of cultivation strategies in dyadic relationship settings. 相似文献
835.
836.
Incomplete data sets are often encountered in theanalysis of quality-of-life (QOL) data. The incompleteness arisesfrom two major sources, namely, missing responses and artificialquantification of response categories. Shen and Lai (1998a)propose using Optimal Scaling (OS) to tackle the problem. The OSmethod based on numerical iterative approach attempts to restorethe continuous property of the measurements and provide estimatesfor missing responses. However, the OS leads to convergenceproblem when there are many missing values in the data set; andit incorporates no mechanisms to provide the standard errors ofthe mean estimates when missing values are filled. Hot-deckimputation is therefore suggested. This paper presents asimulation study to show that the random hot-deck imputationyields reasonable estimates for the population mean and generallypreserves the distribution of the population. In addition, whenapplying the random hot-deck imputation, valid estimates for thestandard error of the mean estimate can be obtained using thevariance formula due to Lai (1998). With hot-deck imputationtaking care of the missing responses and OS quantifying theresponse categories, it is postulated that the problem of dataincompleteness can be more satisfactorily handled. By applyingthe proposed techniques to real survey data, this paper alsopresents the change of the QOL of Hong Kong residents in the lastdecade leading to the turning point of the metropolis in 1997. 相似文献
837.
In this paper, we consider optimal portfolio selection with no short sales and with upper bounds for individual securities. The solution is reached by directy revising the optimal portfolio without upper bounds. Specifically, our analysis is based on the single-index model, as well as the general multi-index model that provides the return generating process for securities in the arbitrage pricing theory. As demonstrated in a simulation study, the proposed algorithm for optimal portfolio selection usually requires very few iterations. Also, since our approach is developed using intuitive reasoning and simple linear algebra, we are able to provide direct and intuitive justifications for the resulting portfolio choice. Therefore this paper should be of interest to both finance academics and practitioners in portfolio management. 相似文献
838.
839.
William Y. Chung Chuansheng Chen Ellen Greenberger Jutta Heckhausen 《Journal of research on adolescence》2009,19(3):359-379
This 1‐year longitudinal study investigated the effects of adolescents' depressed mood on perceived parental and peer warmth during the transition to young adulthood. We hypothesized that ethnicity would moderate such effects. As part of a larger study, 511 adolescents (154 European, 205 Hispanic, and 152 Asian Americans) participated in this research. They were surveyed shortly before their high school graduation and again 1 year later. Analyses based on 2‐wave cross‐lagged models showed that higher levels of initial depressive symptoms predicted lower levels of subsequent perceived parental and peer warmth for European Americans. For Asian Americans, higher initial depressed mood was significantly associated with lower levels of perceived peer warmth and was marginally associated with lower levels of parental warmth. In contrast, the erosion of parental and peer warmth was not evident for Hispanic Americans. The role of culture in the erosion of parental and peer warmth during life transitions was discussed. 相似文献
840.
Céline Teney Laurie Hanquinet Katharina Bürkin 《Journal of ethnic and migration studies》2016,42(13):2182-2204
Over the last 20 years, European identity has become a key topic widely investigated in social sciences. However, most research has only focused on EU nationals and EU immigrants, neglecting the fact that a substantial segment of citizens in Europe are non-EU immigrants. This article explores the differences between and within EU and non-EU immigrant groups in terms of European identity and potential factors behind these differences. Based on the 2013 IAB-SOEP Migration Sample of first generation immigrants in Germany (N?=?2581), this paper reveals that non-EU immigrants tend to identify as European – even if to a lesser extent than EU immigrants. Moreover it provides a systematic comparative exploration of different factors possibly able to foster a European identity among EU and non-EU immigrants. It reveals, for instance, that religious affiliation has no significant impact but that spatial mobility is especially important in accounting for patterns in ethnic disparities in the endorsement of a European identity. Furthermore, this article illuminates a positive association between European identity and identity with the receiving society among both EU and non-EU immigrants as well as a positive association between European identity and identification with the origin country among EU immigrants. 相似文献