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   347篇
  免费   10篇
  2022年   2篇
  2021年   3篇
  2020年   2篇
  2019年   6篇
  2018年   6篇
  2017年   13篇
  2016年   9篇
  2015年   4篇
  2014年   9篇
  2013年   44篇
  2012年   19篇
  2011年   22篇
  2010年   3篇
  2009年   6篇
  2008年   21篇
  2007年   20篇
  2006年   9篇
  2005年   9篇
  2004年   6篇
  2003年   2篇
  2002年   7篇
  2001年   3篇
  2000年   6篇
  1999年   2篇
  1997年   2篇
  1996年   3篇
  1995年   2篇
  1994年   4篇
  1992年   9篇
  1990年   5篇
  1985年   4篇
  1984年   4篇
  1983年   6篇
  1982年   2篇
  1981年   6篇
  1980年   5篇
  1979年   5篇
  1978年   5篇
  1977年   3篇
  1976年   2篇
  1975年   3篇
  1974年   5篇
  1973年   9篇
  1972年   5篇
  1971年   4篇
  1970年   2篇
  1969年   4篇
  1968年   5篇
  1966年   3篇
  1950年   2篇
排序方式: 共有357条查询结果,搜索用时 15 毫秒
71.
In a 3 × 3 factorial experiment with 3 additional cells, 329 male or female subjects working with two same-sex confederates (A and B), received either voluntary, involuntary, or no help from A after which attraction to A and B were measured for one-fourth of the subjects. The remaining subjects were assigned to a second set of tasks and were induced to help A, help B, or were not given an opportunity to help, after which they completed attraction and mood measures. Subjects were more likely to volunteer help after the second task when they had received prior help. Receipt of help led to more liking for the helper and the helper was liked more when subjects were able to reciprocate. Attraction and mood results are discussed in relation to attractiveness mediation, modeling, and indebtedness explanations for reciprocity.  相似文献   
72.
73.
The gain from selection (GS) is defined as the standardized average performance of a group of subjects selected in a future sample using a regression equation derived on an earlier sample. Expressions for the expected value, density, and distribution function (DF) of GS are derived and studied in terms of sample size, number of predictors, and the prior distribution assigned to the population multiple correlation. The DF of GS is further used to determine how large sample sizes must be so that with probability .90 (.95), the expected GS will be within 90 percent of its maximum possible value. An approximately unbiased estimator of the expected GS is also derived.  相似文献   
74.
Development of motor impulse control and reflectivity   总被引:1,自引:0,他引:1  
  相似文献   
75.
76.
Intensive interviewing of counselors, supervisors, clients, and community workers associated with a sample of Youth Opportunity Centers led to the conclusion that assumptions of client-centered therapy are untenable in such settings. The assumptions not found tenable are: (a) client comes voluntarily; (b) client wants help; (c) client accepts counselor's authority; (d) client comes as individual; (e) counselor accepts client. Because of bureaucratic conditions of government programs, because of poverty and demoralization of clients, and because of race and other differences, counseling (except of a highly directive sort) is not possible. A group approach which takes into account the organized nature of the client population is personally recommended and described.  相似文献   
77.
Five rhesus monkeys were tested on performance of an auditory discrimination and a delayed response test with a sliding scale of increasing difficulty after treatment with (a) 0·2 to 0·5 mgm./kgm. reserpine, (b) 150 mgm./kgm. meprobamate, (c) an equivalent saline injection, and (d) no treatment. Both drug treatments resulted in a severe deficit on the auditory discrimination and no change or improvement in delayed response performance. The auditory deficit was not due simply to an increased latency of response.

It is suggested that these results support the hypothesis that reserpine and meprobamate reduce the utilization of sensory information.  相似文献   
78.
We examined whether parent engagement in parent training (PT) differed based on PT format (parent group-based with video versus mastery-based individual coaching with child) in an economically disadvantaged sample of families seeking behavioral treatment for their preschool children in an urban mental health clinic. Parents (N?=?159; 76.1% mothers, 69.8% African American, 73% low-income) were randomized to one of two interventions, Chicago Parent Program (parent group?+?video; CPP) or Parent–Child Interaction Therapy (individualized mastery-based coaching; PCIT). Parent engagement indicators compared were PT attendance and completion rates, participation quality, and parent satisfaction. Risk factors predictive of PT attrition (parent depression, psychosocial adversity, child behavior problem severity, length of wait time to start PT) were also compared to determine whether they were more likely to affect engagement in one PT format versus the other. No significant differences were found in PT attendance or completion rates by format. Clinicians rated parents’ engagement higher in PCIT than in CPP while satisfaction with PT was rated higher by parents in CPP compared to PCIT. Never attending PT was associated with more psychosocial adversity and externalizing behavior problems for CPP and with higher baseline depression for PCIT. Parents with more psychosocial adversities and higher baseline depression were less likely to complete PCIT. None of the risk factors differentiated CPP completers from non-completers. Delay to treatment start was longer for PCIT than CPP. Strengths and limitations of each PT format are discussed as they relate to the needs and realities of families living in urban poverty.  相似文献   
79.
Medical ethics prohibits caregivers from discriminating and providing preferential care to their compatriots and comrades. In military medicine, particularly during war and when resources may be scarce, ethical principles may dictate priority care for compatriot soldiers. The principle of nondiscrimination is central to utilitarian and deontological theories of justice, but communitarianism and the ethics of care and friendship stipulate a different set of duties for community members, friends, and family. Similar duties exist among the small cohesive groups that typify many military units. When members of these groups require medical care, there are sometimes moral grounds to treat compatriot soldiers ahead of enemy or allied soldiers regardless of the severity of their respective wounds.  相似文献   
80.
Recent research suggests that perceiving negative emotion-eliciting scenes approaching intensifies the associated felt emotion, while perceiving emotion-eliciting scenes receding weakens the associated felt emotion (Muhlberger, Neumann, Wieser, & Pauli, 2008). In the present studies, we sought to extend these findings by examining the effects of imagining rather than perceiving such changes to negative emotion-eliciting scenes. Across three studies, we found that negative scenes generally elicited less negative responses and lower levels of arousal when imagined moving away from participants and shrinking, and more negative responses and higher levels of arousal when imagined moving toward participants and growing, as compared to the responses elicited by negative scenes when imagined unchanged. Patterns in responses to neutral scenes undergoing the same imagined transformations were similar on ratings of emotional arousal, but differed on valence-generally eliciting greater positivity when imagined moving toward participants and growing, and less positivity when imagined moving away from participants and shrinking. Moreover, for these effects to emerge, participants reported it necessary to explicitly imagine scenes moving closer or farther. These findings have implications for emotion regulation, and suggest that imagined spatial distance plays a role in mental representations of emotionally salient events.  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