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   24429篇
  免费   459篇
  国内免费   3篇
  24891篇
  2020年   230篇
  2019年   309篇
  2018年   432篇
  2017年   449篇
  2016年   471篇
  2015年   390篇
  2014年   405篇
  2013年   1945篇
  2012年   700篇
  2011年   738篇
  2010年   464篇
  2009年   431篇
  2008年   583篇
  2007年   631篇
  2006年   547篇
  2005年   526篇
  2004年   509篇
  2003年   485篇
  2002年   516篇
  2001年   779篇
  2000年   741篇
  1999年   574篇
  1998年   250篇
  1997年   236篇
  1996年   244篇
  1992年   458篇
  1991年   455篇
  1990年   440篇
  1989年   418篇
  1988年   432篇
  1987年   393篇
  1986年   406篇
  1985年   411篇
  1984年   331篇
  1983年   293篇
  1982年   217篇
  1981年   224篇
  1979年   358篇
  1978年   264篇
  1977年   226篇
  1975年   285篇
  1974年   359篇
  1973年   371篇
  1972年   288篇
  1971年   283篇
  1970年   282篇
  1969年   252篇
  1968年   351篇
  1967年   308篇
  1966年   285篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Children have been shown to prefer faces rated as highly attractive by adults over faces rated as quite unattractive. We investigated to what extent this agreement holds not only for the general direction of preferences but for preference strengths as well. In a choice experiment, we presented 40 nine-year-old girls and their mothers and 40 twelve-year-old girls and their mothers with pairs of women's and girls' faces and asked the subjects to pick the face that appeared prettier to them. Preference frequencies and simple attractiveness scales derived from these preference frequencies by fitting the Bradley-Terry-Luce rule (Luce, D. R. (1959). Individual choice behavior: a theoretical analysis. New York: Wiley) were compared across subject groups. For the women's faces, we found no difference in preferences between nine-year-olds, twelve-year-olds, and adults, neither in direction nor in strength. For the girls' faces, we also found no major differences in preference direction, however, we did find reliable differences in preference strengths. To a considerable part these differences were due to the fact that the children showed less pronounced preferences between face stimuli than the adults. These results suggest a role of developmental factors in the perception of facial attractiveness.  相似文献   
992.
Reflecting on the events that culminated in her receiving the Award for Distinguished Contributions to Applied Psychology as a Professional Practice, Canter, an independent practitioner, discusses the road she traveled to become a clinical psychologist and to become involved in professional organizational activities. She believes that this award was given to her because of her contributions to psychology over her lifetime as an effective and hardworking leader, mentor, and role model in her home state of Arizona and nationally. She addresses some of her ideas about effective leadership and mentoring in the American Psychological Association (APA), providing many examples from which she has learned. Canter also shares some thoughts about APA's position as a leader in the development and enforcement of professional ethics.  相似文献   
993.
OBJECTIVE: To promote greater compliance in using prescribed infant apnea monitors among families with a medically at-risk infant. Eight consecutively referred non-compliant families were treated by a medical social worker who provided educational, behavioral prompting, and case management services. In six families results were evaluated with A-B single case research designs, and in two families A-B-A designs were used. Enhanced compliance followed intervention with all eight families. Clinically satisfactory compliance permitting the pediatrician to safely discontinue monitor use occurred in five of the eight families. Simple behavioral and case management interventions show great promise in promoting caregiver compliance with using home-based infant apnea monitors.  相似文献   
994.
Attention and joint attention in preschool children with autism   总被引:13,自引:0,他引:13  
Three experiments examined the role of attention in explaining dyadic (child-adult) and triadic (child-adult-object) joint attention difficulties in autism. Experiments 1 and 2 investigated children's ability to orient to an adult's attention bid and to follow the direction of a human or nonhuman cue. Experiment 3 tested ability to disengage and shift attention to objects. Results showed autism-specific difficulties at both dyadic and triadic levels. Children with autism were less responsive than developmentally delayed controls in orienting to attention bids and in following a human head-turn cue yet had no difficulty in shifting attention and were faster overall in orienting to targets. Results suggest a specific developmental delay in which children with autism rely on the presence of objects in the visual field to guide action. The relation between this problem and autistic children's difficulties with human communicative signals is discussed.  相似文献   
995.
996.
Ridenour, Daley, and Reich conducted a series of factor analyses using the correlational matrix of the subscale scores of the Family Assessment Device (FAD), published in Family Process, December, 1999. They conclude that "the FAD subscales be reorganized from their current seven-subscale format" (p. 507). We propose that this suggestion for reorganization is premature and based on the inappropriate application of an "internal consistency" model of scale construction to the FAD. We further suggest that the most important criteria regarding an assessment instrument are those of reliability, validity, and clinical utility. In the absence of this kind of data regarding alternative organizations of the FAD, we believe that the original subscales remain the best choice.  相似文献   
997.
The present study evaluated the singular and interactive effects of a functional polymorphism (variation) in the serotonin transporter (5-HTT) gene and a psychological trait (anxiety sensitivity [AS], i.e., fear of arousal symptoms) in predicting subjective and physiological responses to a 35% carbon dioxide (CO2) challenge in a community sample (N = 72). Genotypes were divided into 2 groups in accord with prior research. Findings were partially supportive of the hypothesized risk model. These indicated that the Group L genotype (homozygous for the 1 allele), compared with the Group S genotype (homozygous for the s allele plus heterozygous individuals), predicted greater fearful response to the biological challenge. There was also an AS x Genotype interaction predicting heart rate variability (HRV) in response to the CO2, suggesting that high AS plus Group L status predicts decreased HRV.  相似文献   
998.
Adult participants recruited from the community, one half of whom met criteria for clinical depression, described their day-to-day social interactions using a variant of the Rochester Interaction Record. Compared with the nondepressed participants, depressed participants found their interactions to be less enjoyable and less intimate, and they felt less influence over their interactions. Differences between the two groups in intimacy occurred only in interactions with close relations and not in interactions with nonintimates, and differences in influence were more pronounced for those who were cohabiting than for those who were not. There were no differences in how socially active depressed and nondepressed people were or in the amount of contact they had with different relational partners.  相似文献   
999.
Expressed emotion (EE) is an established psychosocial predictor of relapse in patients with schizophrenia and mood disorders; however, nothing is currently known about the personality characteristics of high- and low-EE relatives. A total of 45 relatives of schizophrenia patients completed the California Psychological Inventory, a widely used measure of common personality traits. Compared with low-EE relatives, high-EE relatives were more conventional in their behavior (higher norm-favoring) and less satisfied with themselves and their lives (lower self-realization). High-EE relatives were also less flexible, tolerant, and lower in empathy and achievement via independence than were low-EE relatives. Even with statistical control of potential demographic confounds, flexibility remained a significant predictor of EE status.  相似文献   
1000.
It is generally assumed that individuals who take risks with their health either underestimate the magnitude of those risks or seek some benefit. This study assessed whether risk taking might also result from underestimating the benefits. In Study 1, lower estimates of the pleasure of drug use and risk of addiction were significantly related to increased self-reported experimentation and problems with drug use. This relationship remained significant even after controlling for preexisting psychosocial factors. In Study 2, perceptions of these "risks-in-the-benefits" were shown (a) to be distinct from perceptions of immediate benefits and (b) to serve as a protective factor against future alcohol use. Results are discussed in terms of creating improved interventions.  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