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   76070篇
  免费   3071篇
  国内免费   27篇
  2020年   710篇
  2019年   934篇
  2018年   1277篇
  2017年   1338篇
  2016年   1425篇
  2015年   1033篇
  2014年   1209篇
  2013年   5761篇
  2012年   2226篇
  2011年   2391篇
  2010年   1488篇
  2009年   1467篇
  2008年   2072篇
  2007年   2139篇
  2006年   1919篇
  2005年   1716篇
  2004年   1604篇
  2003年   1508篇
  2002年   1636篇
  2001年   2461篇
  2000年   2407篇
  1999年   1843篇
  1998年   855篇
  1997年   762篇
  1996年   792篇
  1995年   694篇
  1992年   1562篇
  1991年   1460篇
  1990年   1431篇
  1989年   1315篇
  1988年   1308篇
  1987年   1240篇
  1986年   1308篇
  1985年   1338篇
  1984年   1108篇
  1983年   1004篇
  1982年   722篇
  1981年   725篇
  1979年   1194篇
  1978年   864篇
  1975年   972篇
  1974年   1092篇
  1973年   1200篇
  1972年   987篇
  1971年   946篇
  1970年   872篇
  1969年   859篇
  1968年   1114篇
  1967年   1013篇
  1966年   866篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
J E Mayer 《Adolescence》1985,20(80):783-795
This article describes a treatment approach for hospitalized adolescents which attempts to address the "response generalization" problem encountered with behaviorally based treatment milieus. The program is described and preliminary data is given to support its techniques. The treatment program attempts to combine behavioral/objective techniques that are so effective in program management, with subjective/clinical strategies.  相似文献   
962.
This study, the first of three designed to investigate different age groups' knowledge of developmental norms of children, focused on older adolescent female university students. Data were collected from 280 midwestern university students through a questionnaire consisting of 16 items focusing on physical and social development of children from birth to three years of age. Results showed that knowledge of normal development was both over- and underestimated regardless of age of student or year in school. These findings are discussed within the context of the importance of knowledge of developmental norms for future parents.  相似文献   
963.
Memory for events occurring under anesthesia   总被引:1,自引:0,他引:1  
  相似文献   
964.
Although the concept of interpersonal pursuing and distancing has been introduced and used clinically, the lack of a reliable and valid measure has deterred its more formal investigation and relevance to personality theory. The Pursuing-Distancing (P-D) Scale, a 92-item measure of the behavioral expression of these characteristics, was developed. Evidence for internal consistency as well as internal support of construct validity is presented and discussed. An 80-item revised scale is available from the authors and is currently being evaluated in a variety of external validation settings.  相似文献   
965.
Locksley, Borgida, Brekke, and Hepburn (1980) assert that subjects fall prey to the base-rate fallacy when they make stereotype-related trait judgments. They found that subjects ignored their stereotypes when trait judgments were made in the presence of trait-related behavioral information. The present article reexamines those findings with respect to two issues: (a) the use of a normative criterion in comparison with subjects' judgments and (b) the level of analysis (group vs. individual) of subjects' judgments. We conducted a replication of the Locksley et al. (1980) Study 2, and the results were examined with respect to these two issues. We found no support for the base-rate fallacy. When a Bayesian normative criterion was constructed for each subject based on the subject's own stereotype judgments and was compared with assertiveness judgments made in the presence of individuating information, there was no evidence that subjects ignored or underused their stereotypes as the base-rate fallacy predicts.  相似文献   
966.
Male subjects were placed into one of three intoxication conditions (no ethanol, low dose, high dose) and were exposed to humorous segments from television programs. During manifest intoxication or the corresponding period in the no-intoxication control condition, they were exposed, in a balanced order, to a segment containing blunt (i.e., unsophisticated, raw) humor and to a segment containing subtle (i.e., sophisticated, refined) humor. Subjects' facial reactions to the humorous stimuli were unobtrusively recorded and later analyzed by judges who were naive about the experimental conditions. Subjects also rated the funniness of the segments. The perceived funniness of blunt humor was found to increase with ethanol intoxication. For subtle humor, in contrast, perceived funniness was found to decrease with intoxication. This divergent interaction of reported humor appreciation was less apparent in the analysis of facial expressiveness. Although correlations between ratings and aspects of facial expression were generally positive, clearly corroborative support for the humor appraisals was found only in the frequency of smiles in response to subtle humor.  相似文献   
967.
This study empirically tested Bem's (1974) assumption that the BSRI Masculinity and Femininity scales measure sex-typed standards of desirable behavior for men and women in American society. The adequacy of items in the two scales was evaluated by Bem's (1974) criteria using two types of desirability and stereotype ratings. Results obtained in all the experimental conditions except one involving Bem's desirability instructions and Bem's rating scale did not support the tested assumption. Implications of these results for revising the BSRI scales were discussed.  相似文献   
968.
A social dilemma (Dawes, 1980) may be defined as a situation in which a collection of individuals is faced with a conflict between maximizing selfish interests and maximizing collective interests. The dilemma is based on the fact that if all choose to maximize selfish interests, all are worse off than if all choose to maximize collective interests. In a decomposed social dilemma (Pruitt, 1967), the outcomes are divided into two components: one component is based on one's own choice and the second component is based on the choices made by the others. Using 3-person decomposed games, two types of incentives were contrasted: a positive incentive (bonus) for cooperative choices and a negative incentive (penalty) for noncooperative choices. Two experiments were conducted using male college students. The results of both experiments showed that the positive incentive evoked a higher level of cooperation than the negative incentive. The results are discussed in terms of nonadditive utility components, Pruitt's motivational interpretation, and Kelley and Thibaut's (1978) theory of interdependence.  相似文献   
969.
The longitudinal stability of personality was investigated in a group of several hundred adults who were rated by themselves, their marriage partners, and their acquaintances in 1935-1938 and by themselves and their marriage partners in 1954-1955. For both men and women, there were very similar factorial structures in all five sources of ratings. Individual differences in neuroticism, social extraversion, and impulse control had reasonably high levels of longitudinal stability over a 19-year period. Both the synchronic and diachronic correlations converged across methods and discriminated among traits. Self-report personality inventory data available in 1935-1938 and 1954-1955 provided corroborating evidence of the longitudinal and methodological robustness of personality traits. In data gathered on the same panel in 1980-1981, the questionnaire and the life history correlates of neuroticism and social extraversion displayed patterns indicative of temporal stability, methodological convergence, and discrimination among constructs. The data of this longitudinal study carried out over five decades strongly indicate that there is a set of personality traits that are generalizable across methods of assessment and are stable throughout adulthood.  相似文献   
970.
One of the central hypotheses of learned helplessness theory is that exposure to noncontingency produces a reduced ability to perceive response-outcome relations (the postulated "cognitive deficit"). To test this hypothesis, subjects were exposed to a typical helplessness induction task and then asked to make judgments of the amount of control their responses exerted over a designated outcome (the onset of a light). Support for the postulated cognitive deficit would be found if subjects who experienced the induction underestimated the relation between their responses and outcomes. The results, however, demonstrated that induction subjects (n = 30) made higher and more accurate judgments of control than subjects in a no-treatment control group (n = 30). This finding clearly fails to support the postulated cognitive deficit and highlights the need for other direct tests of the basic hypotheses of helplessness theory.  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