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   12212篇
  免费   508篇
  国内免费   6篇
  2023年   69篇
  2022年   63篇
  2021年   125篇
  2020年   222篇
  2019年   258篇
  2018年   337篇
  2017年   311篇
  2016年   378篇
  2015年   245篇
  2014年   335篇
  2013年   1339篇
  2012年   571篇
  2011年   568篇
  2010年   419篇
  2009年   426篇
  2008年   593篇
  2007年   574篇
  2006年   509篇
  2005年   438篇
  2004年   473篇
  2003年   431篇
  2002年   415篇
  2001年   180篇
  2000年   200篇
  1999年   187篇
  1998年   193篇
  1997年   158篇
  1996年   109篇
  1995年   146篇
  1994年   144篇
  1993年   131篇
  1992年   124篇
  1991年   112篇
  1990年   109篇
  1989年   109篇
  1988年   110篇
  1987年   107篇
  1986年   85篇
  1985年   101篇
  1984年   116篇
  1983年   98篇
  1982年   112篇
  1981年   117篇
  1980年   104篇
  1979年   103篇
  1978年   109篇
  1977年   89篇
  1976年   93篇
  1975年   64篇
  1974年   77篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
A review of the literature suggests that higher levels of psychopathy may be linked to less effective behavioral control. However, several commentators have urged caution in making statements of this type in the absence of direct evidence. In two studies (total N?=?142), moment-to-moment accuracy in a motor control task was examined as a function of dimensional variations in psychopathy in an undergraduate population. As hypothesized, motor control was distinctively worse at higher levels of psychopathy relative to lower levels, both as a function of primary and secondary psychopathy and particularly their shared variance. These novel findings provide support for the idea that motor control systematically varies by psychopathy, in a basic manner, consistent with views of psychopathy emphasizing lesser control.  相似文献   
992.
This study sought to replicate the results of our earlier study, which were published in this Journal (Willoughby et. al 2011), that used mother-reported items from the Achenbach System of Empirically Based Assessment to develop a screening measure of callous unemotional (CU) behaviors for use with preschool-aged children. We further sought to extend those results by exploring the predictive validity of the CU measure with aggression trajectories in early-/mid- childhood. The current study involved secondary data analysis of the NICHD Study of Early Childhood and Youth Development (NICHD-SECCYD) dataset. Factor analyses included N?=?1,176 children who participated in the age 3 year assessment of the NICHD-SECCYD. Predictive models included N?=?1,081 children for whom four of the six possible teacher ratings of aggressive behavior were available from annual assessments spanning 1st–6th grades. Consistent with prior work, a three-factor confirmatory factor model, which differentiated CU from oppositional defiant (ODD) and attention deficit/hyperactive-impulsive (ADHD) behaviors, provided the best fit to the data. Among children with disorganized attachment status, the combination of high levels of mother-rated ODD behaviors and CU behaviors, was predictive of stable elevated levels of teacher-rated aggression from 1st–6th grade (predicted probability?=?0.38, compared with a base rate of 0.07). These results demonstrate that CU behaviors can be reliably measured by parent report in young children and are dissociable from more commonly assessed dimensions of disruptive behavior. Three-year-old children who exhibit elevated levels of ODD and CU behaviors, and who have disorganized attachments, are at increased risk for exhibiting elevated levels of aggression across middle childhood. Results are discussed from the perspective of early assessment and intervention.  相似文献   
993.
994.
The ability to accurately assess credibility is important in countless situations, including many in which individuals being assessed are not speaking their native language. There is reason to believe that native and non‐native speakers may behave differently when lying and that detectors may have a bias to believe non‐native speakers are lying. However, very little is known about detecting deception in non‐native speakers, and the few existing studies have not resulted in consistent findings. The current research compared the ability to detect lies and truths in native speakers with that in non‐native speakers and looked at differences in the cues displayed via the Psychologically Based Credibility Assessment Tool. Results from two samples with different demographic characteristics and backgrounds indicated that there was a bias to believe that non‐native speakers were lying. These results may have implications regarding the use of interpreters in settings where credibility is being assessed. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   
995.
Sustainable solutions to the access to mental health care problems are complex and must address both the availability of mental health care resources and the acceptability of those resources to consumers. The purpose of this study was to determine how to address the acceptability problem by learning from medical and mental health care providers what mental health therapists need to know to be successful in providing care in rural communities. Using a qualitative design, focus groups were conducted in three rural communities (<2,500) with medical and mental health care providers practicing in these communities. Data were analyzed using inductive qualitative methods. Results indicate that in addition to sound clinical skill, mental health therapists should (A) be sensitive to the culture of the rural community in which they are working and (B) practice in a way that accommodates to the care culture of the community. The latter includes spending time with patients commensurate with what is expected by other providers, engaging in generalist practice, and collaborating with local providers in patient care. An important implication of these results is that mental health care must be acceptable to both the residents of the community and the gatekeepers to health care.  相似文献   
996.
Situational judgment tests (SJTs) have become popular selection methods, with 59 empirical studies having been published since 1990. In contrast to prior narrative reviews or meta-analyses, this study develops (a) a comprehensive structure of SJT features, or “attributes,” (b) uses this structure to quantitatively and qualitatively summarize existing research in a content analysis, and then (c) uses the content analysis to generate directions for future research. The review is organized around a single question: What are the current practices in SJT research? Using this question as a foundation, we focus the content analysis on three significant theoretical and practical themes: (a) SJT development, scoring methods, and uses; (2) types of reliability estimates reported for SJTs, and (3) attributes that enhance or reduce internal consistency reliability.  相似文献   
997.
Hardly any region has recently captured the global geopolitical imagination as much as the Arab world after the so-called Arab Spring and very likely no state more so than Egypt. Finally it seemed that democracy was coming to the region, that this would spell the end of radical Islam, and of any local aspirations of creating Islamic states, and mark the beginning of a rapprochement between East and West. This article analyses and links those dynamics, with particular reference to the transition process in the wake of the so-called Arab Revolution, and gauges what may be at stake for members of non-Muslim faiths. It particularly traces the rift between theoretical Muslim discourse about Islamic tolerance towards other faiths and its implementation or the absence thereof in practice. It concludes that so far no real progress has been made and that, for the relationship to evolve, Islam needs to proceed to a state in which it sees itself as no more than an equal to other religions. The recognition of its tradition-based nature and of the consequences that flow from such a realization for the treatment of its fundamental sources, the Qur'an and the Sunna, will be addressed. To evaluate the current situation and the outlook, we shall use the example of the famous eighteenth-century German play by Gotthold Ephraim Lessing, Nathan the Wise, about the occupation of Jerusalem by Saladin.  相似文献   
998.
This paper explores several paths by which the extended cognition (EC) thesis may overcome the coupling-constitution fallacy. In so doing, I address a couple of shortcomings in the contemporary literature. First, on the dimension of first-wave EC, I argue that constitutive arguments based on functional parity suffer from either a threat of cognitive bloat or an impasse with respect to determining the correct level of grain in the attribution of causal-functional roles. Second, on the dimension of second-wave EC, I argue that especially the complementarity approach suffers from a similar sort of dilemma as first-wave EC: an inability to justify just what entails the ontological claim of EC over the scaffolding claim of weaker approaches in cognitive science. In this paper I show that two much more promising explanations by which to ground the ontological claim of EC are available, both starting from an exploration of the coordination dynamics between environmental resources and neural resources. On the one hand, I argue that second-wave EC based on cognitive integration, with its focus on bodily manipulations constrained by cognitive norms, is capable of resolving the coupling-constitution fallacy. On the other hand, I argue that the framework of cognitive integration can be supplemented by philosophical accounts of mechanistic explanation, because such accounts enable us to explain the emergence of higher-level cognitive properties due to a system's organization-dependent structure.  相似文献   
999.
Recent studies have established that even infants can determine what others know based on previous visual experience. In the current study, we investigated whether 2- and 3-year-olds know what others know based on previous auditory experience. A child and an adult heard the sound of one object together, but only the child heard the sound of another (target) object. When later the sounds of both objects were played simultaneously, the adult reacted with surprise and excitement (“Oh, listen, what is that?”). In response, both 24- and 36-month-olds directed the adult's attention to the target more often than chance and more often than in a control condition in which the adult had heard neither sound. These results indicate that by 24 months of age, children's understanding of others' knowledge and ignorance is not limited to the visual domain but extends across perceptual domains.  相似文献   
1000.
Patients with schizophrenia (SZ) show cognitive impairments on a wide range of tasks, with clear deficiencies in tasks reliant on prefrontal cortex function and less consistently observed impairments in tasks recruiting the striatum. This study leverages tasks hypothesized to differentially recruit these neural structures to assess relative deficiencies of each. Forty-eight patients and 38 controls completed two reinforcement learning tasks hypothesized to interrogate prefrontal and striatal functions and their interaction. In each task, participants learned reward discriminations by trial and error and were tested on novel stimulus combinations to assess learned values. In the task putatively assessing fronto-striatal interaction, participants were (inaccurately) instructed that one of the stimuli was valuable. Consistent with prior reports and a model of confirmation bias, this manipulation resulted in overvaluation of the instructed stimulus after its true value had been experienced. Patients showed less susceptibility to this confirmation bias effect than did controls. In the choice bias task hypothesized to more purely assess striatal function, biases in endogenously and exogenously chosen actions were assessed. No group differences were observed. In the subset of participants who showed learning in both tasks, larger group differences were observed in the confirmation bias task than in the choice bias task. In the confirmation bias task, patients also showed impairment in the task conditions with no prior instruction. This deficit was most readily observed on the most deterministic discriminations. Taken together, these results suggest impairments in fronto-striatal interaction in SZ, rather than in striatal function per se.  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