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   23932篇
  免费   467篇
  2023年   27篇
  2022年   34篇
  2021年   56篇
  2020年   82篇
  2019年   82篇
  2018年   3624篇
  2017年   2974篇
  2016年   2456篇
  2015年   345篇
  2014年   195篇
  2013年   527篇
  2012年   768篇
  2011年   2603篇
  2010年   2621篇
  2009年   1641篇
  2008年   1858篇
  2007年   2314篇
  2006年   186篇
  2005年   333篇
  2004年   287篇
  2003年   237篇
  2002年   181篇
  2001年   87篇
  2000年   108篇
  1999年   67篇
  1998年   73篇
  1997年   56篇
  1996年   41篇
  1995年   54篇
  1994年   31篇
  1993年   30篇
  1992年   29篇
  1991年   28篇
  1990年   31篇
  1989年   21篇
  1988年   15篇
  1987年   19篇
  1986年   19篇
  1985年   24篇
  1984年   13篇
  1983年   15篇
  1982年   22篇
  1981年   24篇
  1980年   14篇
  1979年   17篇
  1978年   17篇
  1977年   12篇
  1976年   17篇
  1975年   16篇
  1974年   16篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
171.
Bowker  Julie C.  Ooi  Laura L.  Coplan  Robert J.  Etkin  Rebecca G. 《Sex roles》2020,82(7-8):482-492
Sex Roles - Informed by prior work on social withdrawal and gender role norms, the present study utilizes data from a large sample of U.S. (n?=?656) and Canadian (n?=?560)...  相似文献   
172.
A robust research literature links parental spanking with negative behavioral outcomes for children, however, it remains unclear whether conditions in the community may moderate the associations between spanking and behavior problems in early childhood. In the current study, we examined whether community violence exposure moderated the associations of maternal spanking with externalizing and internalizing behavior problems of young children. The sample used in this study was urban families and their children ages 3–5 (n = 2,472). We used fixed effects regression models, which yield stronger statistical control for baseline behavior problems, selection bias, and omitted variables bias. Mother's spanking was associated with elevated levels of both externalizing (β = .037, p < .001) and internalizing (β = .016, p < .001) behavior problems. Community violence exposure also predicted higher levels of externalizing (β = .071, p < .01) and internalizing (β = .043, p < .05) behavior problems. Community violence exposure did not moderate the associations between maternal spanking and behavior problems. Professionals working with families should promote the use of nonphysical disciplinary practices, regardless of the level of violence and crime in the community in which the family resides.  相似文献   
173.
Discounting the value of delayed rewards has primarily been measured in children with the delay of gratification task and in adolescents and adults with the delay discounting task. In the present study, we assessed the suitability of the delay discounting task as a measure of temporal discounting in children. A sample of 7- to 9-year-olds (N = 98) completed a delay discounting task, a delay of gratification task, a sensation seeking measure, and IQ measures. In addition, teacher-based assessments of attention-deficit/hyperactivity disorder traits were measured. The results indicated that the majority of children produced meaningful data on the discounting task and discounted rewards hyperbolically. Children with an elevated risk of attention-deficit/hyperactivity disorder showed a trend towards discounting future rewards on the delay discounting task more steeply than did those at low risk. However, delay discounting was unrelated to either delay of gratification or sensation seeking. We interpret these results as providing some support for the use of delay discounting as a measure of intertemporal choice in children, although the results also suggest that delay discounting and delay of gratification tasks may tap different processes in this population.  相似文献   
174.
175.
Only one previous developmental study of Stroop task performance (Schiller, 1966) has controlled for differences in processing speed that exist both within and between age groups. Therefore, the question of whether the early developmental change in the magnitude of Stroop interference actually persists after controlling for processing speed needs further investigation; work that is further motivated by the possibility that any remaining differences would be caused by process(es) other than processing speed. Analysis of data from two experiments revealed that, even after controlling for processing speed using z‐transformed reaction times, early developmental change persists such that the magnitude of overall Stroop interference is larger in 3rd‐ and 5th graders as compared to 1st graders. This pattern indicates that the magnitude of overall Stroop interference peaks after 2 or 3 years of reading practice (Schadler & Thissen, 1981). Furthermore, this peak is shown to be due to distinct components of Stroop interference (resulting from specific conflicts) progressively falling into place. Experiment 2 revealed that the change in the magnitude of Stroop interference specifically results from joint contributions of task, semantic and response conflicts in 3rd‐ and 5th graders as compared to a sole contribution of task conflict in 1st graders. The specific developmental trajectories of different conflicts presented in the present work provide unique evidence for multiple loci of Stroop interference in the processing stream (respectively task, semantic and response conflict) as opposed to a single (i.e. response) locus predicted by historically – favored response competition accounts.  相似文献   
176.
177.
178.
179.
The study of Freud's personal conception of writing and his use of it illuminates a significant aspect of his relationship with others, and also his sense of his own heroic greatness. In two related periods of his life, acts of writing--which were notably overdetermined in Freud and which informed as well as facilitated a distinctive kind of self-expression--gave rise to veritable (w)rites of passage. In those periods, the transferential dynamics in Freud's relationships with Fliess, his daughter Anna, and certain important analysands were expressed in ways connected with the content and process of various types of writing, including editing and translating. In sum, there is something still to be discovered in Freud's attitudes to his writing and to related intergenerational transactions between analysts and analysands who engage together in compositional activities.  相似文献   
180.
One hundred ninety-five boys with attention-deficit/hyperactivity disorder (ADHD) were compared with 73 comparison boys (M = 9.83 years, SD = 1.30) on self-perceptions relative to a teacher-rated criterion. Emphasis was placed on ADHD subgroup comparisons according to level of aggression, academic achievement, and depression compared with control boys. Consistent with the authors' prediction, ADHD boys overestimated relative to teacher report, more than did controls, in the scholastic competence, social acceptance, and behavioral conduct domains. Examination of discrepancy scores (child rating - teacher rating) by comorbidity subgroups suggested that aggressive and low-achieving ADHD boys tended to overestimate their competence the most in the domains in which they were the most impaired. Results are discussed in terms of prior literature on "positive illusions" in ADHD children.  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