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   2192篇
  免费   83篇
  国内免费   1篇
  2020年   31篇
  2019年   42篇
  2018年   36篇
  2017年   52篇
  2016年   40篇
  2015年   27篇
  2014年   41篇
  2013年   222篇
  2012年   76篇
  2011年   84篇
  2010年   42篇
  2009年   50篇
  2008年   105篇
  2007年   77篇
  2006年   87篇
  2005年   69篇
  2004年   74篇
  2003年   55篇
  2002年   86篇
  2001年   19篇
  2000年   36篇
  1999年   38篇
  1998年   40篇
  1997年   31篇
  1996年   29篇
  1995年   23篇
  1994年   31篇
  1993年   28篇
  1992年   29篇
  1991年   28篇
  1990年   21篇
  1989年   33篇
  1988年   19篇
  1987年   31篇
  1986年   21篇
  1985年   26篇
  1984年   22篇
  1983年   33篇
  1982年   29篇
  1981年   32篇
  1980年   23篇
  1979年   21篇
  1978年   33篇
  1977年   39篇
  1976年   27篇
  1975年   33篇
  1974年   25篇
  1973年   22篇
  1970年   18篇
  1966年   19篇
排序方式: 共有2276条查询结果,搜索用时 31 毫秒
901.
A previous study by Dion and Dion (1975) revealed that highly defensive individuals were less likely to report having experienced romantic love than less defensive persons. The hypothesis that this finding might reflect differential reactions to interpersonal intimacy was directly examined in the present study using a self-disclosure paradigm. To assess subjects' defensiveness, undergraduate women first completed the Marlowe-Crowne Social Desirability Scale. In a second session, subjects were exposed to high and low disclosing targets of the same and opposite sex and chose discussion topics for each target. On intimacy of self-disclosure, a “reciprocity effect” occurred: subjects chose more intimate topics for high vs low-disclosing targets. However, highly defensive women gave a less favorable self-presentation to male vs female targets. They also expressed less liking for high compared to low intimate targets and males vs females than less defensive subjects. The implications of these results for heterosexual attraction were discussed.  相似文献   
902.
Characteristics of microcomputers are described affecting suitability for low-cost laboratory network use. Assuming a network of small microcomputers with interfaces for applications and a larger one for program development, 6502-based hobbyist computers appear cheapest at this time, while microcomputers imitating minicomputers have the best hardware and software support.  相似文献   
903.
904.
Studies on the expectancy model have presented conflicting results concerning the usefulness of valence ratings. There has been some support for valence as significantly adding to the predictability of occupational preference, while other studies have indicated that instrumentality ratings alone are sufficient.  相似文献   
905.
Two laboratory experiments are reported. Each investigates the bias that social relationships exert on a subject's propensity to recall another's completed and uncompleted tasks. Using closed circuit television, subjects in both experiments observed a bogus other working on a set of puzzles. The person working completed only one-half of the puzzles. In three of the six experimental conditions in both experiments, subjects believed that the remaining puzzles could be completed at a later time. In the first experiment, a subject's relationship to the other was determined by cooperative, competitive, or individualistic economic incentives. In the second, the relationship was determined simply by their similarity or dissimilarity on a bogus personality test. Utilizing a combination of Lewinian assumptions and contemporary theory about memory, we hypothesized that the opportunity to resume work would result in an increased propensity to recall uncompleted tasks in the competitive (or dissimilar) conditions and a decreased propensity to do so in the cooperative (or similar) conditions. Results confirmed this hypothesis. Additional data in both experiments suggest that subjects' relationships with the bogus other altered the accessibility of this information. Theoretical implications of these findings and their relationship to research on prosocial behavior are discussed.  相似文献   
906.
Direction of rotation and static slant judgments were collected for a series of outline plane forms in four experiments with 106 subjects. Direction was judged more accurately for forms displaying the same perspective gradients as trapezoids, but with right-angled contours, than for trapezoids. There were no consistent differences among these forms in judged slant. Direction of rotation judgments were affected by a static false interposition cue, with interposition increasing the proportion of veridical judgments when placed in conflict with a relative size gradient and decreasing this proportion when a size gradient was absent. Both a dynamic factor (contour angle change) and a static factor (misperceived relative distance of the vertical sides) were found to affect perceived direction of rotation, with direction judgments based primarily on the dynamic factor.  相似文献   
907.
Several recent studies have indicated that the degree and direction of bilateral skin conductance (BSC) asymmetry and the direction of conjugate lateral eye movements (CLEMs) both index hemispheric functioning. Evidence also suggests that BSC asymmetry decreases and CLEMs become more unidirectional as level of arousal increases. Thirty-two normal adults received an habituation series of five-second tones followed by 40 questions. All stimuli were tape recorded. The questions (Schwartz, Davidson, and Maer, 1975) were grouped in four series: 10 verbal-emotional, 10 verbalnonemotional, 10 spatial-emotional, and 10 spatial-nonemotional. The order in which the four series were presented was counterbalanced across subjects. Prior to each question, subjects fixated the face of a mannequin. Sixteen subjects (high arousal) had five seconds to contemplate their answer; the remaining 16 (low arousal) had 10 seconds. Instructions for the high arousal group specified that intelligence and problem-solving ability was being tested, and that speed and accuracy were very important. Those for the low arousal group indicated casually that subjects were to ponder a series of questions. BSC levels, SC response amplitudes, and CLEMs were measured during a five-second interval following each tone or question. BSC levels were greater under the High Arousal condition. While approximately two-thirds of the subjects showed BSC asymmetry (roughly evenly divided between those with larger left and right hand responses), neither the degree nor direction of the asymmetries changed as a function of question type. While CLEM direction was more sensitive to question type under low arousal, (i.e., verbal questions resulted in predominantly right-going CLEMs and spatial questions resulted in predominantly left-going CLEMs) they tended to be stereotyped (i.e., unidirectional) under high arousal. Finally, no relationship was observed between CLEM direction and BSC asymmetry under either high or low arousal condition.  相似文献   
908.
The goals of this research were to describe the process of identifying and recruiting individuals registered with a cancer center's cancer registry who were eligible to participate in cancer genetic research. This study specifically focused on younger women with personal and family cancer histories strongly suggestive of hereditary breast cancer syndromes, as determined by genetic counselor review. Of special interest was to determine the proportion of women from minority backgrounds who were (a) identifiable in this manner and (b) interested in genetic testing for hereditary breast cancer through a family cancer clinical research program. An initial query of the 292 cases of women newly affected with breast cancer and contained within the registry indicated that 124 met demographic eligibility criteria. The personal and family cancer histories of each of these women were then reviewed by a genetic counselor and the remaining, eligible patients (n = 31) were subsequently contacted by mail and telephone: approximately three-fifths (18/31) of these patients were White and two-fifths (13/31) were Black or of another racial background. Of the women who were sent one or more study-related mailings, 10% (3/31) were unreachable by telephone due to incorrect contact information, 32% (10/31) were reachable by telephone but unresponsive to messages left, 26% (8/31) had already participated in the family cancer program (i.e., were positive controls), 6% (2/31) were interested in participating in the program, 23% (7/31) were uninterested in participating in the program, and 3% (1/31) were later determined to be ineligible. Comparing the racial backgrounds of women who were either positive controls or interested in participating (i.e., “tester” category) to women who were either unreachable, nonresponsive, uninterested, or ineligible (i.e., “nontester” category), there was a nonsignificant trend for more non-White women to fall into the nontester than tester category, Fisher's Exact Test = .09. This work underscores practical steps in planning and carrying-out cancer genetic testing research among women newly affected with breast cancer and members of special populations. It also underscores the role that genetic counseling professionals play in this process.  相似文献   
909.
Effective engagement in interdisciplinary work is critical if community psychology is to achieve its promise as a field of ecological inquiry and social action. The purpose of this paper and special issue is to help make the benefits of interdisciplinary community research clearer and to identify and begin to address its challenges. Although some areas of psychology (e.g., biological, cognitive and health) have made substantial interdisciplinary strides in recent decades, progress in community psychology (and related areas) is more modest. In this article we explore the prospects for expanding and improving interdisciplinary community research. Challenges include designs, measures, and analytical frameworks that integrate multiple levels of analysis from individuals through families, organizations, and communities to policy jurisdictions, and the complexities involved in simultaneously bringing together multiple disciplinary collaborators and community partners. Challenges to interdisciplinary collaboration common to all disciplines include the disciplinary nature of academic culture and reward structures, limited funding for interdisciplinary work and uncertainties related to professional identity and marketability. Overcoming these challenges requires a synergy among facilitative factors at the levels of the interdisciplinary project team (e.g., the framing question; embedded relationships; leadership), the investigators (e.g., commitment to new learning; time to invest), and the external context (e.g., physical, administrative, economic and intellectual resources and support for interdisciplinary work). We conclude by identifying several exemplars of effective interdisciplinary collaborations and concrete steps our field can take to enhance our development as a vibrant community-based, multilevel discipline increasingly devoted to interdisciplinary inquiry and action.  相似文献   
910.
The mutual best friendships of shy/withdrawn and control children were examined for prevalence, stability, best friend's characteristics, and friendship quality. Using peer nominations of shy/socially withdrawn and aggressive behaviors, two groups of children were identified from a normative sample of fifth-grade children: shy/withdrawn (n = 169) and control (nonaggressive/nonwithdrawn; n = 163). Friendship nominations, teacher reports, and friendship quality data were gathered. Results revealed that shy/withdrawn children were as likely as control children to have mutual stable best friendships. Withdrawn children's friends were more withdrawn and victimized than were the control children's best friends; further, similarities in social withdrawal and peer victimization were revealed for withdrawn children and their friends. Withdrawn children and their friends reported lower friendship quality than did control children. Results highlight the importance of both quantitative and qualitative measures of friendship when considering relationships as risk and/or protective factors.  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