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   3557篇
  免费   159篇
  国内免费   2篇
  3718篇
  2020年   49篇
  2019年   74篇
  2018年   97篇
  2017年   88篇
  2016年   94篇
  2015年   72篇
  2014年   94篇
  2013年   392篇
  2012年   120篇
  2011年   142篇
  2010年   88篇
  2009年   89篇
  2008年   128篇
  2007年   111篇
  2006年   114篇
  2005年   102篇
  2004年   84篇
  2003年   99篇
  2002年   108篇
  2001年   96篇
  2000年   86篇
  1999年   69篇
  1998年   42篇
  1997年   38篇
  1996年   41篇
  1995年   43篇
  1994年   40篇
  1993年   33篇
  1992年   49篇
  1991年   51篇
  1990年   46篇
  1989年   48篇
  1988年   36篇
  1987年   37篇
  1986年   46篇
  1985年   43篇
  1984年   43篇
  1983年   33篇
  1982年   41篇
  1981年   35篇
  1979年   40篇
  1978年   31篇
  1975年   35篇
  1974年   34篇
  1973年   29篇
  1972年   31篇
  1970年   39篇
  1968年   35篇
  1967年   42篇
  1966年   33篇
排序方式: 共有3718条查询结果,搜索用时 0 毫秒
931.
The purpose of this study was to examine if age, attitudes toward help-seeking, education, and sex were related to previous or intended future mental health utilization in a rural population. Data were collected via a mail survey from 438 adults. Regression analyses suggested that positive attitudes toward help-seeking, being female, and being younger were significantly related to both previous and intended future mental health service utilization. In addition, prior mental health use was significantly related to whether one would seek out mental health services in the future, Implications for mental health practitioners in rural settings are addressed, and limitations of the study discussed.  相似文献   
932.
Trusting agents characteristically anticipate beneficial outcomes, under conditions of uncertainty, in their engagement with others. However, debates about trust incorporate different interpretations of risk, uncertainty, calculation, affect, morality and motivation in explaining when trust is appropriate and how it operates. This article argues that discussions about trust have produced a concept without coherent boundaries and with little operational value. Two paradigms are identified, which distinguish the characteristics of trust and confidence. It is argued that a reliance on confidence in human affairs makes trust redundant and that this has undesirable moral consequences. Discussion is illustrated by the UK Government's 'modernisation' policy in health and social care, which privileges confidence in systems over trust in moral agents.  相似文献   
933.
Screeners at airport security checkpoints perform an important categorization task in which they search for threat items in complex x-ray images. But little is known about how the processes of categorization stand up to visual complexity. The authors filled this research gap with screening tasks in which participants searched for members of target categories in visual displays. The authors found that when targets were sampled with replacement and repetition, participant screeners relied on recognizing familiar targets and had great difficulty using category-general knowledge. The authors observed a "heartbeat" in detection performance--it improved while test images repeated but dropped sharply when unfamiliar targets from the same categories appeared. This reliance on familiarity illuminates the processes of categorization under conditions of visual complexity and suggests limits on those processes. This reliance also has implications for the training and evaluation of screeners in the field.  相似文献   
934.
Pedophiles are motivated to disguise their thoughts and feelings about their sexual beliefs and attraction toward children. New developments using implicit measures of associations have been successful in accessing socially stigmatic beliefs, even in cases in which the participant is resistant to this disclosure. Using an implicit measure, the authors show that pedophiles have an association between children and sex, whereas nonpedophilic offenders have an association between adults and sex. The task can therefore identify a core cognitive abnormality that may underpin some pedophilic deviant sexual behavior.  相似文献   
935.
Age differences in distinctive processing were investigated by examining the effects of study presentation modality on false recall in younger and older adults using the Deese/Roediger and McDermott paradigm. Participants were presented with study words either visually or auditorily. Older adults did not show the typical reduction in false recall after visual, compared to auditory, study presentation (R.E. Smith & R.R. Hunt, 1998). The authors interpret these results as evidence of reduced distinctive processing on the part of older adults.  相似文献   
936.
In the novel noun generalization task, 2 1/2-year-old children display generalized expectations about how solid and nonsolid things are named, extending names for never-before-encountered solids by shape and for never-before-encountered nonsolids by material. This distinction between solids and nonsolids has been interpreted in terms of an ontological distinction between objects and substances. Nine simulations and behavioral experiments tested the hypothesis that these expectations arise from the correlations characterizing early learned noun categories. In the simulation studies, connectionist networks were trained on noun vocabularies modeled after those of children. These networks formed generalized expectations about solids and nonsolids that match children's performances in the novel noun generalization task in the very different languages of English and Japanese. The simulations also generate new predictions supported by new experiments with children. Implications are discussed in terms of children's development of distinctions between kinds of categories and in terms of the nature of this knowledge.  相似文献   
937.
Smith GT 《心理评价》2005,17(4):413-414
To validate a measure of a construct is to validate a theory: The process includes theory specification, theory elaboration, choice of methods, choice of research design, reliance on necessary auxiliary theories, and empirical observation. Evaluating the success of the process is likely to be enhanced through quantification. To date, scientists have quantified the final step of empirical observation, but earlier steps in the validation process appear more difficult to measure. In this issue, D. Westen and R. Rosenthal (2005) emphasize that threats to validity are often methodological ones that precede empirical observation. Yet, their earlier attempt to quantify construct validity focused only on the final, empirical observation step of the process. For that reason, it can produce positive results despite real theoretical and methodological threats to validity. Nonetheless, the laudable attempt by these distinguished authors to quantify construct validity reminds us of the complexity of the construct validation process.  相似文献   
938.
Adults described and dated two kinds of first remembrances: a personal event memory (the recollection of a personal episode that had occurred at some time in some place) and a memory fragment (an isolated memory moment having no event context and remembered, perhaps, as an image, a behavior, or an emotion). First fragment memories were judged to have originated substantially earlier in life than first event memories--approximately 3 1/3 years of age for first fragment memories versus roughly 4 years of age for first event memories. We conclude that the end of childhood amnesia is marked not by our earliest episodic memories, but by the earliest remembered fragments of childhood experiences.  相似文献   
939.
School-wide behavior management systems can improve academic performance and behavior in middle schools, and they should have positive effects on students with ADHD. Unfortunately, evidence-based, school-wide behavior management systems have not been widely adopted because of problems with feasibility, acceptability, and sustainability. The Deployment-Focused Model of Intervention Development and Testing has been proposed as a promising method of bridging the gap between research and practice settings. A key aspect of the model is to involve the persons most likely to deliver the service (e.g., teachers) in the intervention development process from the very beginning. To illustrate this process, the authors describe the planning and implementation of a school-wide program designed to improve behavior in a public middle school.  相似文献   
940.
Clinical interviews administered to third- to sixth-graders explored children's conceptualizations of rational number and of certain extensive physical quantities. We found within child consistency in reasoning about diverse aspects of rational number. Children's spontaneous acknowledgement of the existence of numbers between 0 and 1 was strongly related to their induction that numbers are infinitely divisible in the sense that they can be repeatedly divided without ever getting to zero. Their conceptualizing number as infinitely divisible was strongly related to their having a model of fraction notation based on division and to their successful judgment of the relative magnitudes of fractions and decimals. In addition, their understanding number as infinitely divisible was strongly related to their understanding physical quantities as infinitely divisible. These results support a conceptual change account of knowledge acquisition, involving two-way mappings between the domains of number and physical quantity.  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