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   3792篇
  免费   203篇
  国内免费   66篇
  4061篇
  2025年   6篇
  2024年   80篇
  2023年   134篇
  2022年   59篇
  2021年   124篇
  2020年   177篇
  2019年   225篇
  2018年   144篇
  2017年   185篇
  2016年   171篇
  2015年   149篇
  2014年   155篇
  2013年   496篇
  2012年   92篇
  2011年   169篇
  2010年   125篇
  2009年   170篇
  2008年   183篇
  2007年   151篇
  2006年   172篇
  2005年   131篇
  2004年   130篇
  2003年   117篇
  2002年   114篇
  2001年   68篇
  2000年   61篇
  1999年   34篇
  1998年   43篇
  1997年   20篇
  1996年   38篇
  1995年   31篇
  1994年   26篇
  1993年   14篇
  1992年   16篇
  1991年   5篇
  1990年   4篇
  1989年   6篇
  1988年   1篇
  1987年   3篇
  1985年   8篇
  1984年   6篇
  1983年   4篇
  1982年   1篇
  1981年   2篇
  1980年   3篇
  1979年   1篇
  1978年   1篇
  1977年   4篇
  1975年   2篇
排序方式: 共有4061条查询结果,搜索用时 0 毫秒
921.
Abstract

The purpose of sharing is to construct equivalent sets, making it an ideal context for analysing important quantitative concepts such as counting, equivalence and cardinality. Two studies analysed how four- and five-year-olds shared blocks in equal sharing and reciprocity conditions and their number inferences about one set after counting the other. The researcher asked children to share double and single blocks between two characters. They succeeded more in building equivalent shares in an equal sharing than reciprocity condition. Most children who shared correctly also made appropriate number inferences. To examine whether perceptual cues helped children share the blocks, a second study used Canadian $1 and $2 coins. A double block is twice the size of a single, whereas there is no visual cue about the value relation between coins because they are the same size. Unexpectedly, children shared equally well with blocks and coins, and most children made number inferences.  相似文献   
922.
Abstract

This study focuses on the performance of children managing double-entries in a weekly calendar. One hundred and four kindergarten and primary school children were interviewed and asked to solve weekly calendar construction and interpretation tasks using cards. The results show a difference between school year levels in the adequate management of a double-entry table when children construct and interpret a calendar; the interpretation process is less complex than the construction process. The results demonstrated that a deep understanding of a calendar requires using cognitive processes of varying degrees of difficulty and complexity. Therefore, there is a need to emphasize educational tasks which not only involve reading the calendar but which also explain its structure (double-entry) through construction tasks.  相似文献   
923.
    
Data are presented from a longitudinal investigation examining the relationship between maternal mind‐mindedness (MM) in infancy and socio‐cognitive development in childhood. We revisited children (= 18) who had taken part in a longitudinal study as infants. MM had been assessed at 10, 12, 16, and 20 months of age. We followed up these children at 5–6 years of age to test their higher order theory of mind (ToM) (using the strange stories task). The convergent validity, temporal stability, and predictive validity of the construct of MM were examined in a longitudinal data set. The five measures of MM were not significantly correlated. Mother's production of appropriate mind‐related comments (but no other measures) showed evidence of temporal stability throughout infancy. Thus, MM (as measured by appropriate mind‐related comments) was confirmed as a stable construct. Children's ToM at 5–6 years of age was significantly predicted by their mother's MM up to 4 years earlier, with MM accounting for 40% of the variance of the strange stories task scores. These findings identify a relationship between MM across a protracted period of infancy and socio‐cognitive development at 5–6 years of age.  相似文献   
924.
The interviews of 10 female counseling psychology doctoral students regarding their views about meaning in life (MIL) were analyzed using consensual qualitative research. The participants defined MIL as goals or purposes, were actively involved in searching for meaning, and believed that MIL had been stimulated by life-changing experiences and culture. On a personal level, they gained meaning from relationships, personal growth, and religion/spirituality. On a professional level, they gained meaning from providing therapy, conducting research, and teaching. As therapists, participants approached MIL indirectly by asking about client goals/motivations or by focusing on other clinical problems that if resolved would enhance MIL. Implications for doctoral training and for psychotherapy are offered.  相似文献   
925.
  总被引:1,自引:0,他引:1  
  相似文献   
926.
    
Orienting biases for speech may provide a foundation for language development. Although human infants show a bias for listening to speech from birth, the relation of a speech bias to later language development has not been established. Here, we examine whether infants' attention to speech directly predicts expressive vocabulary. Infants listened to speech or non‐speech in a preferential listening procedure. Results show that infants' attention to speech at 12 months significantly predicted expressive vocabulary at 18 months, while indices of general development did not. No predictive relationships were found for infants' attention to non‐speech, or overall attention to sounds, suggesting that the relationship between speech and expressive vocabulary was not a function of infants' general attentiveness. Potentially ancient evolutionary perceptual capacities such as biases for conspecific vocalizations may provide a foundation for proficiency in formal systems such language, much like the approximate number sense may provide a foundation for formal mathematics.  相似文献   
927.
    
Previous research on cross‐situational word learning has demonstrated that learners are able to reduce ambiguity in mapping words to referents by tracking co‐occurrence probabilities across learning events. In the current experiments, we examined whether learners are able to retain mappings over time. The results revealed that learners are able to retain mappings for up to 1 week later. However, there were interactions between the amount of retention and the different learning conditions. Interestingly, the strongest retention was associated with a learning condition that engendered retrieval dynamics that initially challenged the learner but eventually led to more successful retrieval toward the end of learning. The ease/difficulty of retrieval is a critical process underlying cross‐situational word learning and is a powerful example of how learning dynamics affect long‐term learning outcomes.  相似文献   
928.
This study identified relationships among career‐specific barriers (i.e., perfectionism, negative career thoughts, career decision‐making self‐efficacy) in a sample of 300 college students. The authors found relationships among the constructs of interest, prediction of variance in career decision‐making self‐efficacy, and differences among groups of perfectionists on endorsements of negative career thoughts and career decision‐making self‐efficacy. The findings suggest that interventions addressing maladaptive perfectionism and dysfunctional career thinking may enhance clients’ confidence in decision making.  相似文献   
929.
Not much is known about how social network characteristics change in the transition out of school and what role Big Five personality plays in this context. The aim of this paper was twofold. First, we explored changes in social network and relationship characteristics across the transition out of secondary school. Second, we examined within‐person and between‐person effects of personality on these social network changes. Results based on a series of multilevel models to a longitudinal sample of 2287 young adults revealed four main findings. First, social networks increased in size, and this increase was mainly due to a larger number of nonkin. Stable social networks during the transition consisted mainly of family ties but were generally characterized by high closeness. Second, extraversion and openness consistently predicted network size, whereas agreeableness predicted network overlap. Third, increases in emotional closeness were found only for kin; closeness was generally lower for unstable relationships. Fourth, changes in emotional closeness were related to personality, particularly neuroticism, agreeableness, and conscientiousness for stable relationships; for unstable relationships, however, closeness was related to extraversion and openness. The article concludes by discussing the role of personality for social relationship development and the active moulding of social networks in young adulthood. Copyright © 2014 European Association of Personality Psychology  相似文献   
930.
    
Having children affects many aspects of people's lives. However, it remains unclear to what degree the challenges that come along with having children are associated with parents' personality development. We addressed this question in two studies by investigating the relationship between parenting challenges and personality development in mothers of newborns (Study 1, N = 556) and the reciprocal associations between (mastering) parenting challenges and personality development in parents of adolescents (Study 2, N = 548 mothers and 460 fathers). In Study 1, we found the stress of having a newborn baby to be associated with declines in maternal Agreeableness, Conscientiousness, and Emotional Stability. Parenting challenges were also related to personality development in parents of adolescent children in Study 2, with parent–child conflict being reciprocally associated with decreases in Conscientiousness and Emotional Stability. Mastering parenting challenges in the form of high parenting self‐efficacy, on the other hand, was found to be associated with increases in Agreeableness, Conscientiousness, and Emotional Stability, and vice versa. In sum, our results suggest that mastering the challenges associated with the social role of parenthood is one of the mechanisms underlying personality development in young and middle adulthood. Copyright © 2013 John Wiley & Sons, Ltd.  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