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   1227篇
  免费   80篇
  国内免费   20篇
  1327篇
  2024年   11篇
  2023年   12篇
  2022年   16篇
  2021年   16篇
  2020年   48篇
  2019年   36篇
  2018年   41篇
  2017年   42篇
  2016年   46篇
  2015年   34篇
  2014年   26篇
  2013年   135篇
  2012年   50篇
  2011年   59篇
  2010年   44篇
  2009年   46篇
  2008年   62篇
  2007年   69篇
  2006年   46篇
  2005年   49篇
  2004年   49篇
  2003年   41篇
  2002年   49篇
  2001年   21篇
  2000年   12篇
  1999年   27篇
  1998年   31篇
  1997年   15篇
  1996年   19篇
  1995年   20篇
  1994年   14篇
  1993年   9篇
  1992年   13篇
  1991年   9篇
  1989年   4篇
  1987年   5篇
  1986年   10篇
  1985年   8篇
  1984年   6篇
  1983年   10篇
  1982年   4篇
  1981年   5篇
  1980年   8篇
  1978年   6篇
  1976年   6篇
  1974年   4篇
  1973年   3篇
  1960年   4篇
  1948年   3篇
  1946年   3篇
排序方式: 共有1327条查询结果,搜索用时 15 毫秒
941.
    
We propose and test a novel approach for eliciting subjective joint probabilities. In the proposed approach, judges compare pairs of possible outcomes and identify which of the two is more likely and by how much. These pair‐wise comparative judgments create a matrix of ratio judgments from which the target probabilities are extracted using the rows' (or columns') geometric means. In Study 1, subjects provided direct assessments of the likelihood of joint events (e.g., sunny days and stock market gains) and also made pair‐wise comparisons of the same joint events. Subjects in Study 2 learnt the distribution of hypothetical events pairs and provided direct and ratio estimates. In both studies, the ratio estimates were significantly more accurate than the direct estimates. The results suggest that it is possible to elicit probabilistic estimates without explictly asking for probabilities and that the pair‐wise approach is a candidate for complementing or replacing traditional elicitation approaches. Copyright © 2016 John Wiley & Sons, Ltd.  相似文献   
942.
Child health and developmental outcomes are influenced by the health of the family and the context created. Research suggests symptoms of poor family health (e.g. suboptimal family interactions, parenting stress) yet there is limited understanding of the factors which contribute to robust family health which may unveil opportunities for targeted intervention and family health promotion. The present study examined families’ experiences of family health and factors contributing to family health. We performed a qualitative study using constructivist grounded theory methods to guide our understanding of family health for families with typically developing children aged 5–18. Interviews were conducted in family homes and all members were invited to participate. Data from interviews were transcribed, coded, thematically analyzed, and verified with select families. Ten families, including 10 mothers, 8 fathers, and 15 children participated in the study. Participants described family health as a process of balance, living purposefully, and sharing experiences together in alignment with family identity. Mediating family health were processes of awareness and reflection, and adapting, adjusting, and changing in response to family life including external stress factors. Results highlight the possibility for healthcare practitioners to facilitate families’ self-reflection and awareness about their health in order to mediate family health development.  相似文献   
943.
    
This study examined the feasibility, acceptability, and preliminary outcomes of MaPaChat, a parent support intervention delivered using Viber group chat to caregivers in the Philippines during the COVID-19 pandemic. Forty caregivers of children aged 4–17 from predominantly low-income households participated in a culturally adapted version of the Parenting for Lifelong Health ParentChat programme. Feasibility was assessed by enrolment, attendance, and dropout rates. Semi-structured interviews with caregivers and programme facilitators explored programme acceptability. A single-group pre-post design was used to explore changes in child maltreatment, positive parenting, parenting stress, and other secondary outcomes. The mean attendance rate was 82% and the dropout rate was 10%. Caregivers and facilitators found the programme helpful in enhancing parenting knowledge and skills and were satisfied with the programme delivery using Viber group chat but also reported experiencing technological challenges. Pre-post comparisons suggested that the intervention has potential in reducing physical and emotional abuse and associated risk factors. The findings suggest that a parenting intervention delivered over digital group chat by trained community service providers may be a feasible and acceptable way to support caregivers in low-resource settings.  相似文献   
944.
    
Immigrants make up large proportions of many low‐income neighborhoods, but have been largely ignored in the neighborhood safety literature. We examined perceived safety's association with migration using a six‐item, child‐specific measure of parents’ perceptions of school‐aged (5–12 years of age) children's safety in a sample of 93 West African immigrant parents in New York City. Aims of the study were (a) to identify pre‐migration correlates (e.g., trauma in home countries), (b) to identify migration‐related correlates (e.g., immigration status, time spent separated from children during migration), and (c) to identify pre‐migration and migration correlates that accounted for variance after controlling for non‐migration‐related correlates (e.g., neighborhood crime, parents’ psychological distress). In a linear regression model, children's safety was associated with borough of residence, greater English ability, less emotional distress, less parenting difficulty, and a history of child separation. Parents’ and children's gender, parents’ immigration status, and the number of contacts in the U.S. pre‐migration and pre‐migration trauma were not associated with children's safety. That child separation was positively associated with safety perceptions suggests that the processes that facilitate parent–child separation might be reconceptualized as strengths for transnational families. Integrating migration‐related factors into the discussion of neighborhood safety for immigrant populations allows for more nuanced views of immigrant families’ well‐being in host countries.  相似文献   
945.
    
Prior research has found that people perceive positive objects and locations as physically closer than negative ones. Yet, other work has found the opposite to be true for perceptions of temporal distance, where negative future events feel closer than positive ones. Motivated by this seeming discrepancy, we propose that (a) feelings of control can differentially influence how far away valenced (i.e., positive or negative) targets feel in space and time and that (b) the difference in perceived control over space versus time can account for these opposite findings. First, across four studies, we show that high (vs. low) control makes positive targets feel closer and negative targets feel more distant in both physical space (Studies 1 and 1a) and time (Studies 2 and 2a). Then, in Studies 3 and 4, we simultaneously examine perceptions of spatial and temporal distance and show that baseline differences in perceived control between these domains can explain the prior discrepant findings. Finally, a within‐paper meta‐analysis offers further support to these findings.  相似文献   
946.
    
Amotivational symptoms are observed in schizophrenia (SCZ), bipolar disorder (BD), and major depressive disorder (MDD). Effort–cost computation may be a potential contributor to amotivation transdiagnostically. This study examined effort–cost computation in these three diagnostic groups. This study recruited 141 outpatients (49 SCZ, 52 non‐psychotic BD, and 40 non‐psychotic MDD) and 57 healthy controls (HCs). We administered the Effort‐Expenditure for Reward Task (EEfRT), which manipulated different levels of reward magnitude and probability relating to a high and low physical effort task. There were significant interactions between group and reward magnitude, group and reward probability, and group and expected value on the percentage of high‐effort choices. SCZ, BD, and MDD patients made comparably fewer high‐effort choices than HCs in the high‐reward magnitude, high‐reward probability, and high‐expected‐value conditions. Self‐reported amotivation did not correlate with decision‐making on the EEfRT. Our findings suggest that reduced effort expenditure for reward is a transdiagnostic phenotype in SCZ, BD, and MDD.  相似文献   
947.
    
ABSTRACT

This paper explores the UK National Occupational Standards to identify the breadth of occupations for which it has been determined that workers need some degree of religious literacy. A total of 465 standards documents which mention religion and beliefs relating to a diverse range of occupations were retrieved, of which 13 had a primary focus on religion and beliefs. Approximately 60 percent of these standards noted the need for knowledge about religion and beliefs, though only a quarter of these specified actual performance criteria. With some exceptions, most of the standards were vague as to what is meant by religion and its proxies, with very few attempts to define their terms. A lack of specificity renders the inclusion of references to religion largely tokenistic rather than reflecting a measure of religious literacy which could be practically operationalised.  相似文献   
948.
    
Video lectures are increasingly prevalent, but they present challenges to learners. Students' minds often wander, yet we know little about how mind wandering affects attention during video lectures. This paper presents two studies that examined eye movement patterns of mind wandering during video lectures. In the studies, mind wandering reports were collected by either self-caught reports or thought probes. Results were similar across the studies: mind wandering was associated with an increased allocation of fixations to the instructor's image. For fixations on the slides, the average duration increased but the dispersion decreased. Moreover, preliminary evidence suggested that fixation duration and dispersion can diminish soon after self-caught reports of mind wandering. Overall, these findings help advance our understanding of how learners' attention is affected during mind wandering and may facilitate efforts in objectively identifying mind wandering. Future research is needed to determine if these findings can extend to other instructional formats.  相似文献   
949.
    
Students' low confidence, particularly in numerical topics, is thought to be a barrier to keeping them engaged with education. We studied the effects on confidence of exposure to a peer's work of varying quality (very good or bad) and neatness (messy or neat). Previous research underpinned our hypothesis that a peer's bad-quality work—which students rarely see—might boost student confidence more than very good work. We also predicted that a peer's very good work—which students are often shown—might be less discouraging if it were messy, suggesting it required effort and struggle. However, in experiments with university students and low-educated adults, these hypotheses were not supported, and all participants decreased in confidence after seeing any peer work. The failure to find support for these hypotheses can inform future research into social comparison effects on self-confidence in numerical topics. These results also have practical implications for teachers and managers who are expected to provide examples of peer work.  相似文献   
950.
韩凯  沈大为  李波 《心理学报》1999,32(3):249-256
通过实验集中控制了FOR判断等级及其准确性的影响因素。实验以中文字串为学习材料,使用组内设计的实验方法研究了被激活信息的量和强度对FOD等级及准确性的影响。实验结果表明:FOK判断的等级是由被激活信息的总量决定;的,和被激活信息的正确与否无关;FOD判断的准确性是由被激活信息的强度决定的;且二者是在内联系的。  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