首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   3716篇
  免费   217篇
  国内免费   2篇
  2024年   6篇
  2023年   32篇
  2022年   31篇
  2021年   62篇
  2020年   76篇
  2019年   111篇
  2018年   169篇
  2017年   179篇
  2016年   167篇
  2015年   115篇
  2014年   131篇
  2013年   428篇
  2012年   255篇
  2011年   256篇
  2010年   127篇
  2009年   154篇
  2008年   232篇
  2007年   225篇
  2006年   169篇
  2005年   149篇
  2004年   152篇
  2003年   152篇
  2002年   128篇
  2001年   45篇
  2000年   43篇
  1999年   40篇
  1998年   48篇
  1997年   39篇
  1996年   34篇
  1995年   31篇
  1994年   21篇
  1993年   26篇
  1992年   10篇
  1991年   8篇
  1990年   7篇
  1989年   9篇
  1988年   4篇
  1987年   8篇
  1986年   4篇
  1985年   8篇
  1984年   7篇
  1983年   7篇
  1982年   4篇
  1981年   6篇
  1980年   4篇
  1979年   5篇
  1978年   3篇
  1977年   2篇
  1976年   2篇
  1974年   2篇
排序方式: 共有3935条查询结果,搜索用时 31 毫秒
911.
Dark Triad personality traits (narcissism, psychopathy, and Machivellianism) predict increased selfish thinking and behavior. In the context of the COVID-19 pandemic, they have been related to behaviors such as greater hoarding and decreased COVID-preventative behaviors. Here we examined whether the Dark Triad might predict selfish beliefs and behavior surrounding COVID-19 vaccinations during the 2021 U.S. vaccine rollout—a time when availability was scarce and people were prioritized based on factors like preexisting medical conditions or line of work. In a sample of 499 people, we found that the constellation of Dark Triad traits predicted skipping one's priority in line to get the COVID-19 vaccine earlier among the vaccinated. Among the unvaccinated it predicted greater envy, entitlement, perceptions of unfairness, and willingness to skip the line. Taken together, these findings suggest that those high in the Dark Triad do not simply care less about their health and safety, instead there may be circumstances in which dark traits predict preventative, albeit selfish, behavior.  相似文献   
912.
Healthcare providers assume that there are minimal risks and potential psychosocial benefits for children who undergo a bone marrow harvest for the benefit of their critically ill siblings. Ethical justifications for the use of children as donors rely on there being minimal risks since donors receive no direct medical benefits from the intervention. There is little empirical research regarding psychosocial consequences. This article reviews relevant research in three contexts: a) psychosocial outcomes for adults and children who donate tissue and organs; b) psychosocial impacts on a sibling of a pediatric cancer patient; and c) children's decision-making regarding medical decisions. The relevant research literature supports the belief that the psychosocial impact on a child bone marrow donor will be influenced by the survival of the recipient, the age of the donor, and the donor's participation in the decision to donate. In order to empirically validate the actual psychosocial risks (and benefits) for donors, it is argued that direct research is needed so that a donor's well-being can be protected.  相似文献   
913.
In this paper, we utilize GIS (Geographic Information System) mapping data to locate eleven immigrant congregations and the residential addresses of their members in Houston, Texas. Combining this information with ethnographic data allows us to understand how ecological variables impact organizationalcharacteristics of religious institutions. Specifically, we combine GIS and ethnographic data on immigrant congregations in Houston, Texas, to analyze characteristics that make them more parish or niche-like in structure. We demonstrate that the combination of GIS techniques and standard field methods yields the greatest potential to provide a comprehensive understanding of what congregations mean to their members.  相似文献   
914.
We investigated the interrelations between dimensions of perfectionism and measures of academic motivation and learning strategies in university students. When partial correlation analysis was employed to examine the unique relation between specific perfectionism subscales and motivation/learning scales, self-oriented perfectionism was significantly related to students’ motivation and learning strategies in positive, adaptive ways whereas socially prescribed perfectionism was related in negative, maladaptive ways. Self-oriented perfectionists were motivated primarily by extrinsic compensation for their academic work whereas socially prescribed perfectionists were more motivated by recognition from others. Self-oriented perfectionism was significantly positively associated with self-efficacy for learning and performance, adaptive metacognitive and cognitive learning strategies, and effective resource management. Socially prescribed perfectionism was associated negatively with these measures. In addition, self-oriented perfectionism was associated positively with intrinsic goal orientation for a specific course, task value, and critical thinking whereas socially prescribed perfectionism was associated with test anxiety and a decreased likelihood of help-seeking. The theoretical importance of these findings and the implications for devising strategic counseling interventions are discussed.  相似文献   
915.
The turn of the century is an apposite time to review the development of guidance in the United Kingdom. The concept of guidance, in the terms in which it is now understood, is very much a 20th-century notion. It draws on two distinct but related traditions: the development of the practice of career guidance; and the development of guidance as an educational concept. The history of these two developments, and the relationship between them, are briefly outlined. Some of the conceptual issues they raise are examined, including the important but somewhat problematic interface with counselling. Challenges for guidance in the new millennium are discussed, in relation both to policy and practice and to theory and research.  相似文献   
916.
Forty undergraduate Rutgers-Newark students (21 women and 19 men) of Portuguese descent, aged 18 to 28, participated in a study on identity com-mitment and attitudes toward interethnic dating. High commitment to a Portuguese identity was associated with a collectivist orientation and with having a social network densely populated with Portuguese people. High personal concern with the ethnicity of one's dating partner was positively correlated with commitment to a Portuguese identity, and with having a social network densely populated with Portuguese people. High importance placed on parents' opinions about the ethnicity of dating and marriage partners was associated with a collectivist orientation. For women but not men, commitment was associated with high concern with one's partner's ethnicity. Results are discussed in terms of gender and the development of commitment to an ethnic identity.  相似文献   
917.
In survey research, the use of decomposition can lead to pronounced reporting errors as seen by overreporting and overall reporting error. A total of 87 subjects answered either decomposed or undecomposed questions concerning telephone calls made by them while at work. The questionnaire conditions varied the length of the reference period (1 week or 6 months), and the type of call (local or long‐distance). Decomposition conditions introduced either spatial or temporal cues. In all comparisons, decomposed questions increased overreporting bias relative to undecomposed questions. In addition, undecomposed questions with a 1‐week reference period led to increased overreporting bias in comparison to undecomposed/6‐month questions. Results are consistent with a category split estimation model in which smaller categories are predicted to lead to overreporting, and larger categories to underreporting. Decomposition is not recommended for gaining retrospective reports of non‐distinctive, frequent events. Copyright © 2000 John Wiley & Sons, Ltd.  相似文献   
918.
The purpose of this article is to introduce the Family Resilience Inventory (FRI) and present findings on initial efforts to validate this measure. The FRI is designed to assess family resilience in one's current family and in one's family of origin, enabling the assessment of family protective factors across these generations. The development of the FRI was the result of many years of ethnographic research with Southeastern Native American tribes; yet, we believe that this scale is applicable to families of various backgrounds. Items for the FRI were derived directly from thematic analysis of qualitative data with 436 participants, resulting in two 20-item scales. Due to missing data, eight cases were removed from the 127 participants across two tribes, resulting in an analytic sample size of 119. Conceptually, the FRI is comprised of two factors or scales measuring distinct dimensions of family resilience (i.e., resilience in one's current family and resilience in one's family of origin). The results of the confirmatory factor analysis supported the hypothesized two-factor structure (X2(644) = 814.14, = .03, X2/df = 1.10, RMSEA = .03, CFI = .97, TLI = .96). Both the subscales and the total FRI scale (α = .92) demonstrated excellent reliability. The results also provided preliminary evidence of convergent and discriminant validity. This measure fills a gap in the absence of community-based, culturally grounded, and empirical measures of family resilience. The examination of family resilience, which may occur across generations, is an exciting new contribution of the FRI.  相似文献   
919.
What is at stake, psychologically, when a nation considers joining a supranational body such as the European Union? This article addresses this question from the perspective of power, identity, and belonging vis-à-vis superordinate groups. Taking a mixed-methods approach, using focus group (N = 67) and survey (N = 1,192) data, we explore the psychosocial dynamics that shape perceptions of European Union (EU) integration in a prospective member state, Serbia. Findings from the qualitative study highlighted the role of power imbalances in triggering concerns of compatibility in the present, and in shaping the expected consequences for national identity continuity in an EU future. The survey functioned to explore these relationships further, enabling the testing of two moderated mediation models. The first showed that perceptions of national powerlessness predicted lower perceptions that Serbia was representative of Europe, and this was associated with weaker identification as European. In the second model, perceptions of the EU as a hierarchy-enhancing union predicted heightened fears of Serbian identity discontinuity in an EU future, which in turn had downstream consequences for support for working toward EU accession. Both indirect pathways were stronger among high national identifiers, yielding insight into when national and supranational identification can work in harmony. This mixed-methods study sheds light on the importance of social psychological processes concerning hierarchy and groups in understanding citizens’ attitudes toward prospective large-scale political change.  相似文献   
920.
Despite the extensive evaluation of school-based interventions for bullying, victimization remains a significant problem in schools. Bullying victimization is significantly predicted by contextual (school-related) factors. As a consequence whole-school programs have been commonly used to prevent and reduce bullying victimization. Evidence also points to individual risk factors (such as emotional distress) in predicting victimization, yet programs to prevent bullying victimization by changing these individual risks are far less developed. Few studies have approximated “real-world” implementation conditions in their trials. The current effectiveness trial evaluated the combination of a whole-school program designed to prevent bullying perpetration and victimization together with a targeted intervention for at-risk students, teaching them individual and dyadic strategies to reduce their anxiety and manage victimization, allowing schools some latitude to implement programs as they typically would. Students from Grades 3 and 4 (N = 8,732) across 135 schools were randomly assigned to one of four conditions: combined intervention; whole-school intervention only; individual intervention only; and care as usual. Victimization decreased significantly and similarly across all four conditions at 12 and 24 months following baseline. Similar reductions and failure to discriminate conditions were found on other key constructs: anxiety; bullying perpetration; and depression. Possible reasons for the failure to demonstrate victimization prevention differences and lessons learned from this large, effectiveness trial are considered.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号