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   2276篇
  免费   116篇
  国内免费   2篇
  2023年   22篇
  2022年   19篇
  2021年   38篇
  2020年   54篇
  2019年   75篇
  2018年   98篇
  2017年   116篇
  2016年   102篇
  2015年   57篇
  2014年   80篇
  2013年   301篇
  2012年   88篇
  2011年   110篇
  2010年   67篇
  2009年   66篇
  2008年   82篇
  2007年   88篇
  2006年   69篇
  2005年   64篇
  2004年   43篇
  2003年   35篇
  2002年   58篇
  2001年   28篇
  2000年   40篇
  1999年   31篇
  1998年   15篇
  1997年   18篇
  1996年   17篇
  1995年   22篇
  1993年   16篇
  1992年   19篇
  1991年   19篇
  1990年   14篇
  1989年   17篇
  1988年   19篇
  1987年   19篇
  1986年   22篇
  1985年   18篇
  1984年   19篇
  1983年   13篇
  1982年   14篇
  1981年   21篇
  1980年   13篇
  1979年   24篇
  1978年   17篇
  1977年   16篇
  1976年   19篇
  1975年   17篇
  1974年   25篇
  1973年   22篇
排序方式: 共有2394条查询结果,搜索用时 15 毫秒
941.
Children's expectations about the emotions that surround a moral transgression were examined. In experiment 1, children aged 4-6 years and 8-9 years listened to a story about a child who resisted but then yielded to the temptation to take a sweet without permission. In line with earlier findings (Nunner-Winkler and Sodian, 1988), older children were more likely than younger children to expect the wrongdoer to feel pleased at resisting, but to feel bad after yielding to, temptation. In experiment 2, the relation between expectations of emotion and actual resistance to temptation was studied. Children aged 5-6 years again made judgements about a story character who eventually yielded to temptation. Their own resistance to temptation was assessed by means of a cheating task: children were given an opportunity to cheat by peeking during the experimenter's absence. Children who did not peek were more likely to attribute morally oriented feelings to the story protagonist. The results suggest that children who readily anticipate the emotional consequences of wrongdoing are more likely to resist the temptation to transgress.  相似文献   
942.
We examined adults' memory for the actors and actresses who won Academy Awards for their performances in specific motion pictures between 1992 to 1937. Fifty-six individuals between 41 to 81 years of age completed inclusion and exclusion versions of aMovie Memory Questionnaire in which they were required to identify actors and actresses who were paired with the names of movies they actually appeared in (e.g., Cher—Moonstruck) or they never appeared in (e.g., Robert DeNiro—Annie Hall), respectively. Estimates of the independent contributions of conscious and unconscious influences on recollection were obtained by analyzing subjects' performance on the inclusion and exclusion tasks via Jacoby's (1991)Process Dissociation Procedure. Results indicated that conscious recollection for motion picture information exhibited a typical retention function, whereas unconscious contributions to recollection remained relatively constant over the entire time range that was sampled. When age differences were considered, it was found that young-old participants displayed a higher level of conscious recollection than did middle-age and old-old adults. The role played by unconscious processes in recollection, however, did not vary by age group.  相似文献   
943.
While religion has long been recognized clinically to provide important coping strategies in the face of serious health problems, there has been little systematic consideration of its role in organ transplant recipients' long-term reactions and adjustment to this experience. This study examines these issues through qualitative and quantitative evaluation of longitudinal data collected from 40 adult heart recipients followed during their first year post-transplant. Large proportions of recipients expressed strong beliefs and were able to increase religious participation over the 12-month study period. They delineated specific ways in which their faith had provided them support, as well as ways in which the transplant experience itself further strengthened their beliefs. We found empirical evidence that recipients with strong beliefs who participated in religious activities had better physical and emotional well-being, fewer health worries, and better medical compliance by the final 12-month assessment. The findings suggest the development of specific nursing, social-service, or pastoral-involvement strategies, continuing staff education about the role of religion in patient care. The implications of such interventions for maximizing quality of life in transplant recipients are discussed.This study was funded by grants from the National Institute of Mental Health.  相似文献   
944.
In order to investigate factors that influence the size of tips given in restaurants, 107 waiters (Study 1) and 137 customers (Study 2) were asked various questions about tipping. The findings confirmed a number of hypotheses. Respondents said that they themselves tip more than most people. Waiters indicated that they were more generous tippers and were more accurate in their estimate of 15% of the bill than customers. Tip size was reportedly increased by friendly service, good suggestions, excellent food, prompt delivery of the main course and check, a self-introduction by the waiter, and receiving separate checks. The tip was decreased by waiting a long time for a beverage and being seated in a bad location. Waiters identified more variables than did customers as being significantly associated with tip size, and they felt that excellent food, being in an expensive restaurant, and being seated in a bad location had greater effects on tipping than did customers. When asked about characteristics of waiters who receive large or small tips, most waiters and customers mentioned the waiter's attitude and quality of service. There was much less consensus on the characteristics of high and low tippers. Gender was not significantly related to any responses. In general, although waiters and customers share many beliefs about tipping, waiters may be more aware than customers of the relevant characteristics of the situation and of the individuals involved.  相似文献   
945.
The silent period hypothesis was investigated by examining the speech development of AO, a Polish-speaking child, who emigrated to the U.S. at age 7 years, 5 months, and placed in the second grade of a rural Missouri school district in which there was no instruction of English as a second-language. AO was observed for 6 years, 8 months, in order to study the development of his English speech patterns. During this interval, recordings were made of five sentences produced by AO at five different age points and with recordings from a control group of native and nonnative speakers were rated by native American speakers. AO's accent showed a gradual decline during the first year of residence, receiving a rating of near-native speech. By age 14 years, 6 months, he was rated as having native speech performance. Observations of his language, social, and school development indicated that AO remained essentially silent during the first 6 months, using two- and three-word sentences only when necessary, that his social development was normal, and that his school achievement was not impeded by his placement in the grade level appropriate for his age. The conclusion was reached that AO's silent period experience contributed significantly to his development of English speech patterns.  相似文献   
946.
Two studies that examined the correlates of peoples′ reports of their own psychological well-being are reported (Ryff, 1989). In Study 1, extraverts reported better psychological adjustment than introverts, especially when they completed the questionnaires with no one else present. Need for social approval and the sex of the participant were unrelated to self-reports of well-being. Satisfaction with social activities, especially activities involving friends and parents, predicted psychological well-being but the frequency of social activity did not. Completing questionnaires in the presence of friends led to better self-assessments of well-being than completing them in the presence of strangers. In Study 2, internal locus of control, high desire for control, and being female, as well as perceived control over the testing situation, were found to predict reports of better psychological adjustment. It is suggested that future research on self-assessments of psychological well-being focus on: (a) the interaction effects of personality and situational variables; (b) the difference between seeking social interaction and seeking social approval: (c) the distinction between platonic and romantic relationships, and; (d) changes in the correlates of psychological well-being throughout the life-cycle.  相似文献   
947.
This study examined the perceptions of a sample of university counselors relative to social, cultural, and psychological barriers to achievement among gifted Black and gifted White students. Ninety-three counselors at institutions of higher education throughout the nation participated in the study by responding to a mailed survey questionnaire. Comparisons were made relative to counselors' demographic variables (ethnicity, gender, multicultural training, and geographic locale). The results indicate that the university counselors sampled disagreed with or were undecided about the special dilemmas confronting gifted learners. Moreover, most counselors perceived that gifted Black and gifted White students experience social, cultural, and psychological problems in the same way. The study concludes with recommendations for university counselors working with gifted students in general and gifted Black students in particular  相似文献   
948.
This laboratory study investigates negotiated allocations of benefits and burdens. We compare both the distributive and integrative aspects of negotiation to determine whether benefits and burdens are allocated according to the same norms of distributive justice and how well negotiators integrate their interests. We hypothesize that the distribution of resources depends on the valence of the resources and negotiators′ relative contributions to those resources. We also expect that the efficiency of agreements depends on the valence of resources, the negotiators′ contributions, and the time horizon of their relationships. Results support the hypotheses. Equity is more commonly used to allocate burdens than benefits; agreements for allocating burdens are less integrative than those for benefits; and agreements are more efficient when relationships are long term and subjects contribute unequally to the resources being allocated than when they contribute equally or relationships are short term. We discuss these results in terms of Taylor′s (1991) hypothesis about the asymmetrical effects of positive and negative events.  相似文献   
949.
The effect of adult social reinforcement on the cooperative play of a five-year old girl in a preschool setting was assessed under two conditions: (1) presented randomly throughout the school day, and (2) presented contingent on cooperative play. Only in the latter condition was a significant change in cooperative play observed.  相似文献   
950.
Response patterning during stimulus generalization in the rat   总被引:2,自引:2,他引:0       下载免费PDF全文
Nine rats were trained to bar press in the presence of a clicking sound of 6.67 cps (S(D)) for 1-min variable-interval food reinforcement randomly alternated with a clicking sound of 20 cps (S(Delta)) signifying extinction. After a criterion of 90% of total responses in the presence of the S(D) was obtained, a generalization test was administered, including values of 6.67, 10.00, 13.33, and 20.00 cps, with responses in the presence of the S(D) continuing to be reinforced during testing. The test yielded a gradient of response strength with rate highest in the presence of the S(D) and decreasing with increasing distance from this value. An interresponse time (IRT) analysis of responding during generalization testing revealed no systematic differences in modal IRT category or in median IRT to the different test stimuli. Mean IRT was lowest in the presence of the S(D) and increased systematically with increasing distance from this value, supporting the hypothesis that the generalization gradient of response rate is primarily the result of an increasing proportion of "long" IRT responses to stimuli increasingly distant from the S(D).  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