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   2873篇
  免费   150篇
  3023篇
  2023年   34篇
  2022年   24篇
  2021年   41篇
  2020年   66篇
  2019年   76篇
  2018年   96篇
  2017年   115篇
  2016年   129篇
  2015年   91篇
  2014年   84篇
  2013年   357篇
  2012年   156篇
  2011年   175篇
  2010年   103篇
  2009年   114篇
  2008年   120篇
  2007年   127篇
  2006年   96篇
  2005年   94篇
  2004年   87篇
  2003年   83篇
  2002年   99篇
  2001年   35篇
  2000年   30篇
  1999年   32篇
  1998年   41篇
  1997年   31篇
  1996年   34篇
  1995年   27篇
  1994年   26篇
  1993年   19篇
  1992年   24篇
  1991年   19篇
  1990年   17篇
  1989年   22篇
  1988年   22篇
  1987年   17篇
  1986年   16篇
  1985年   23篇
  1984年   20篇
  1983年   20篇
  1982年   23篇
  1981年   16篇
  1980年   16篇
  1979年   15篇
  1978年   16篇
  1977年   13篇
  1976年   12篇
  1975年   9篇
  1973年   16篇
排序方式: 共有3023条查询结果,搜索用时 15 毫秒
51.
52.
This study compared prototype and rote instruction of English names for Chinese visual characters. In the prototype condition, participants were taught the meaning of the prototype that served as the distinctive feature of multicomponent characters. In the rote condition, participants traced the character and wrote its translation. Participants learned more rapidly and maintained more words in the prototype condition.  相似文献   
53.
The development of models that predict outcomes of voluntary action is important for practitioners who manage large groups of volunteers. In accordance with this goal, a path model was generated linking predonation characteristics of volunteer marrow donors to postdonation physical and psychological reactions. Questionnaire data were collected from 343 individuals registered to donate marrow to unrelated strangers at 3 time points: shortly predonation, shortly postdonation, and 1-year post- donation. Although donors had generally positive reactions to donation, a substantial minority reported ambivalence about donating, physical difficulty with donation, and negative psychological reactions postdonation. In addition, our data suggest that predonation ambivalence is a central predictor of postdonation reactions, even after other donor characteristics are taken into account. These results have practical implications for the recruitment of volunteers, and suggest important variables to be considered in evaluating potential bone marrow donors.  相似文献   
54.
Research indicates that antigay victimization is widespread and that lesbian, gay, and bisexual young people may be very vulnerable to such victimization. The current study builds upon previous work by Hershberger and D'Augelli (1995), who studied the consequences of sexual orientation-based victimization in 194 urban lesbian, gay, and bisexual youths. Using structural equation modeling, the present study models both antecedents and consequences (including psychological distress, self-esteem, and suicidality) of victimization via a secondary analysis of their data set. In addition, a second sample of 54 lesbian, gay, and bisexual youths from a rural university setting was examined to cross-validate and generalize the relationships found in urban settings. Results indicated that a revised model of victimization exhibited sufficient fit to the urban sample data and provided preliminary support for the generalizability of the model beyond the initial sample. Additional similarities were found between the urban and rural university community samples, including a high prevalence of reported suicide attempts: 42% of the urban sample and 32% of the rural university sample had attempted suicide at least once. Results indicated that victimization based on sexual orientation has similar correlates for young people in different community settings.  相似文献   
55.
56.
This study investigated relations between values and the attractiveness and choice of food in different contexts for a sample of 464 participants who completed a mail survey distributed in 12 supermarkets in metropolitan Adelaide, South Australia. Participants responded to 5 hypothetical scenarios describing situations, each of which presented 2 alternatives relating to the presentation or consumption of different foods. Participants also completed the Schwartz Value Survey (Schwartz, 1992). Results showed that measures of the attractiveness (or valence) of each alternative and choice of alternative were related to specified value types for some scenarios, depending on context and structural relations among the value types engaged by each alternative. Results also implied that choice of alternative was mediated by the valences.  相似文献   
57.
A thorough psychometric evaluation of the Career Decision-Making Self-Efficacy Scale (CDMSES; Taylor & Betz, 1983) is provided. The construct of career decision-making self-efficacy, stemming from Bandura's (1977) self-efficacy theory, is discussed. A summary of the initial construction and development of the scale is provided, followed by a comprehensive review of the results of various investigations on the reliability and validity of the CDMSES. An overall evaluation of the CDMSES's psychometric strengths and weaknesses is given. The article concludes with ideas for additional psychometric research of the CDMSES and discusses the usefulness of the scale in career counseling and career development research.  相似文献   
58.
The present study investigated the validity of an inpatient pain behavior rating scale modified for outpatient use. A series of 43 consecutive outpatients referred for evaluation of chronic pain was examined using the Pain Behavior Scale (PBS) and other psychometric instruments. Analyses revealed significantly higher Pain Behavior Scale scores for low back and multiple pain-site groups. The results also indicated a high degree of internal consistency of the scale. A multiple regression analysis, predicting observed pain behavior from reported pain behavior, indicated that decreased activity accounted for 32% of the variance in the PBS score. A similar regression for pain experience found that the pain level and the sensory scale score on the McGill Pain Questionnaire accounted for 39% of the PBS variance. Psychological characteristics including disease conviction, self-control, depression, and anxiety explained 45% of the variability in the PBS score. Thus, the scale is related to pain intensity, interference with activities, and a variety of psychological characteristics. The scale provides a measure of observable pain behavior that is also relatively independent of these clinical data sources. The Pain Behavior Scale as modified for outpatient use provides a brief index of pain behavior with potential use in the comprehensive evaluation of the pain patient.  相似文献   
59.
The principal concern of this essay is to offer practical and personal guidance to professional therapists who wish to engage in research in family therapy. It is not a paper about research design or experimental/observational/survey methods; rather the focus is upon the experience of engaging in research. It attempts to destroy a few common myths about researchers, research, and the motives of researchers and those whom they research. Research is seen as a continuing and evolving process (rather than a product) which can intrude in many aspects of the individual's life; it can affect motives, working relationships, organizational composure, personal family life, and personal self-esteem. Research is thus like most other forms of employment. Research, as an activity, must be seen in terms of systems dynamics, resistance to change, and hopefully, in terms also, of self-actualization and the refreshment of professional parts that other addictions cannot reach.
Recommendations are made for the structuring of research activity, in the light of the research model presented.  相似文献   
60.
Two experiments were carried out to show that the constancy of Type II d’ in recall is not an artifact, but is due to finite-state processes as suggested by Bernbach (1967). The following conclusions were reached: (1) The constancy of Type II d’ is not an artifact due to the inclusion of intralist intrusions in the class of incorrect responses; (2) backward learning curves constructed from confidence ratings gave clear evidence of all-or-none recall; (3) recall appeared to be all or none whether the subjects learned by rote or with a mnemonic; (4) the discriminability index derived from Luce’s (1959) choice theory did not exhibit constancy over trials, unlike Type II d’ and despite the fact that backward rating curves indicated all-or-none processes.  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