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   325篇
  免费   4篇
  329篇
  2024年   7篇
  2023年   6篇
  2022年   2篇
  2021年   7篇
  2020年   14篇
  2019年   15篇
  2018年   12篇
  2017年   15篇
  2016年   12篇
  2015年   12篇
  2014年   6篇
  2013年   38篇
  2012年   11篇
  2011年   21篇
  2010年   12篇
  2009年   5篇
  2008年   8篇
  2007年   14篇
  2006年   15篇
  2005年   11篇
  2004年   9篇
  2003年   5篇
  2002年   6篇
  2000年   4篇
  1999年   5篇
  1998年   3篇
  1997年   5篇
  1996年   6篇
  1995年   3篇
  1994年   2篇
  1993年   1篇
  1992年   3篇
  1991年   4篇
  1990年   4篇
  1989年   2篇
  1987年   2篇
  1986年   3篇
  1985年   2篇
  1984年   1篇
  1983年   1篇
  1981年   2篇
  1978年   1篇
  1977年   1篇
  1976年   2篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
  1971年   1篇
  1970年   2篇
  1951年   1篇
排序方式: 共有329条查询结果,搜索用时 15 毫秒
91.
92.
    
In sign languages, the task of communicating a shape involves drawing in the air with one moving hand (Method One) or two (Method Two). Since the movement path is iconic, method choice might be based on the shape. In the present studies we aimed to determine whether geometric properties motivate method choice. In a study of 17 deaf signers from six countries, the strongest predictors of method choice were whether the shape has any curved edges (Method One), and whether the shape is symmetrical across the Y‐axis (Method Two), where the default was Method One. In a second study of ASL dictionary entries for which the movement path of the sign is iconic of an entity's shape, the same predictors surfaced. These tendencies are captured in the Lexical Drawing Principle, which is coherent with biological constraints on movement in general. Drawing in the air with two hands, however, is costly, both cognitively and biomechanically. Furthermore, it distinguishes signers from non‐signers, who draw shapes with only one hand. Signers assume this extra cost in the lexicon because of the enhanced iconicity the possibility of two hands offers; they assume it in drawing shapes in the air because they apply the same linguistic principle they use in the lexicon. Additionally, having a choice of methods allows the signer to benefit from over‐specification in providing redundant information about the shape, enhancing comprehensibility and resolving ambiguity.  相似文献   
93.
This study investigated longitudinal pathways leading from early spatial skills in first-grade girls to their fifth-grade analytical math reasoning abilities (= 138). First-grade assessments included spatial skills, verbal skills, addition/subtraction skills, and frequency of choice of a decomposition or retrieval strategy on the addition/subtraction problems. In fifth grade, girls were given an arithmetic fluency test, a mental rotation spatial task, and a numeric and algebra math reasoning test. Using structural equation modeling, the estimated path model accounted for 87% of the variance in math reasoning. First-grade spatial skills had a direct pathway to fifth-grade math reasoning as well as an indirect pathway through first-grade decomposition strategy use. The total effect of first-grade spatial skills was significantly higher in predicting fifth-grade math reasoning than all other predictors. First-grade decomposition strategy use had the second strongest total effect, while retrieval strategy use did not predict fifth-grade math reasoning. It was first-grade spatial skills (not fifth-grade) that directly predicted fifth-grade math reasoning. Consequently, the results support the importance of early spatial skills in predicting later math. As expected, decomposition strategy use in first grade was linked to fifth-grade math reasoning indirectly through first-grade arithmetic accuracy and fifth-grade arithmetic fluency. However, frequency of first-grade decomposition use also showed a direct pathway to fifth-grade arithmetic reasoning, again stressing the importance of these early cognitive processes on later math reasoning.  相似文献   
94.
    
The present study empirically examined the relationship between perceived depth of discussion of multicultural identities in clinical supervision and supervision outcomes in 132 practicum trainees and interns from American Psychological Association-accredited doctoral programs in counseling, clinical, and combined psychology. Results indicated that ethnic minority trainees and gay, lesbian, and bisexual trainees perceived increased depth of discussion of their corresponding identities compared to White trainees and heterosexual trainees, respectively. However, women and men reported no difference in perceptions of depth of discussion regarding gender. Perceived depth of discussions of three multicultural identities (gender, race/ethnicity, and sexual orientation) was significantly and positively correlated with supervisory working alliance, multicultural intervention self-efficacy, and general counseling self-efficacy, and significantly and negatively correlated with role ambiguity and role conflict. These relationships between perceived depth of discussion and role ambiguity and working alliance-rapport remained significant for the three identities while controlling for past training experiences. The relationships between perceived depth of discussion of gender and role conflict, of race/ethnicity and working alliance client focus, and of sexual orientation and role conflict, multicultural intervention, and working alliance client focus also remained significant while controlling for past training experiences. Implications for supervisory practice, training, and research are discussed.  相似文献   
95.
    
Many consider the world to be morally better today than it was in the past and expect moral improvement to continue. How do people explain what drives this change? In this paper, we identify two ways people might think about how moral progress occurs: that it is driven by human action (i.e., if people did not actively work to make the world better, moral progress would not occur) or that it is driven by an unspecified mechanism (i.e., that our world is destined to morally improve, but without specifying a role for human action). In Study 1 (N = 147), we find that those who more strongly believe that the mechanism of moral progress is human action are more likely to believe their own intervention is warranted to correct a moral setback. In Study 2 (N = 145), we find that this translates to intended action: those who more strongly believe moral progress is driven by human action report that they would donate more money to correct a moral setback. In Study 3 (N = 297), participants generate their own explanations for why moral progress occurs. We find that participants’ donation intentions are predicted by whether their explanations state that human action drives moral progress. Together, these studies suggest that beliefs about the mechanisms of moral progress have important implications for engaging in social action.  相似文献   
96.
    
This study examined predictors of pay grade for ethnic minorities and women in the U.S. military using hierarchical regression analyses. In the analysis including all personnel, being a woman and ethnic minority status were negative predictors of pay grade after controlling for education and years of service. In the analysis using enlisted personnel, the interaction between years of service and minority status showed that more years of service was associated with higher pay grade among ethnic majority enlisted personnel after controlling for education and years of service. In the model using officers, being a woman was a negative predictor of pay grade after controlling for education and years of service. Future studies, implications, limitations, and strengths are discussed.  相似文献   
97.
    
Repetition of deliberate self-harm (DSH) is common. Some patients repeat multiple times. We have investigated the characteristics of repeaters, and mortality in three groups of DSH patients by repetition status. Data collected by the Oxford Monitoring System for Attempted Suicide were used to examine the pattern of repetition of DSH patients presenting to a general hospital between 1990 and 1997. Each patient was tracked through the monitoring system with regard to repetition. Patients traceable through National Death Registers were followed up until 2000 with respect to mortality. A total of 4,167 patients were studied of which 1,022 (24.5%) repeated at least once during follow-up. Using multinomial regression, past history of DSH was the variable most strongly associated with frequent (4+) and less frequent (1-3) repetitions. Risk of suicide was significantly increased in females with frequent repetition (7.7% dying by suicide), compared with both those with 1-3 repetitions (2.3%) and those not repeating (1.0%). The analyses were repeated for the 2,167 patients with no past history of DSH at their first presentation. Using multinomial regression, personality disorder was the only variable that was associated with 4+ repetitions compared with no repetitions, although a number of variables distinguished between patients with 1-3 repetitions and no repeat episodes. For clinicians assessing DSH patients, past history of DSH is the best predictor of infrequent and frequent repetition. In patients with no past history of DSH the presence of personality disorder increases the risk of frequent repetition of DSH.  相似文献   
98.
    
This study examined the nature of the association between social support and posttraumatic stress disorder (PTSD) symptomatology among 2,249 male veterans of the 1990‐1991 Gulf War. Using structural equation modeling, a cross‐lagged panel analysis indicated a strong negative relationship between PTSD at Time 1 and social support at Time 2, while social support at Time 1 did not predict PTSD at Time 2. Findings suggest that, over time, interpersonal problems associated with PTSD may have a detrimental influence on the quality and quantity of available social support resources. It is recommended that greater focus be placed on the interpersonal skills of those suffering from PTSD.  相似文献   
99.
    
Young children have an overall preference for child‐directed speech (CDS) over adult‐directed speech (ADS), and its structural features are thought to facilitate language learning. Many studies have supported these findings, but less is known about processing of CDS at short, sub‐second timescales. How do the moment‐to‐moment dynamics of CDS influence young children's attention and learning? In Study 1, we used hierarchical clustering to characterize patterns of pitch variability in a natural CDS corpus, which uncovered four main word‐level contour shapes: ‘fall’, ‘rise’, ‘hill’, and ‘valley’. In Study 2, we adapted a measure from adult attention research—pupil size synchrony—to quantify real‐time attention to speech across participants, and found that toddlers showed higher synchrony to the dynamics of CDS than to ADS. Importantly, there were consistent differences in toddlers’ attention when listening to the four word‐level contour types. In Study 3, we found that pupil size synchrony during exposure to novel words predicted toddlers’ learning at test. This suggests that the dynamics of pitch in CDS not only shape toddlers’ attention but guide their learning of new words. By revealing a physiological response to the real‐time dynamics of CDS, this investigation yields a new sub‐second framework for understanding young children's engagement with one of the most important signals in their environment.  相似文献   
100.
    
Many children diagnosed with autism spectrum disorders have difficulty making appropriate eye contact and engaging in joint attention. The current study evaluated a computer‐assisted instruction package (pairing visual stimuli with vocal stimuli) as a novel treatment to improve the eye gaze accuracy in 3 elementary school children with autism. The researchers measured the latency from a recorded verbal stimulus to the students making eye contact with pictures of familiar individuals displayed on a computer screen, and the duration for which eye gaze on the stimulus was maintained. An automated infrared camera system for measuring eye gaze was utilized that eliminated the need for an instructor to make subjective judgments regarding participants' eye gaze. For all three participants, duration of eye contact increased, and latency to responding decreased following exposure to the computer‐assisted instruction. The implications of these findings for the treatment of individuals with autism are discussed, along with suggestions for future research on the topic.  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