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   2144篇
  免费   51篇
教育   1753篇
科学研究   40篇
各国文化   21篇
体育   104篇
综合类   2篇
文化理论   13篇
信息传播   262篇
  2023年   6篇
  2022年   20篇
  2021年   27篇
  2020年   44篇
  2019年   77篇
  2018年   110篇
  2017年   105篇
  2016年   101篇
  2015年   51篇
  2014年   80篇
  2013年   472篇
  2012年   69篇
  2011年   78篇
  2010年   74篇
  2009年   79篇
  2008年   87篇
  2007年   69篇
  2006年   51篇
  2005年   55篇
  2004年   57篇
  2003年   35篇
  2002年   35篇
  2001年   22篇
  2000年   27篇
  1999年   15篇
  1998年   25篇
  1997年   31篇
  1996年   24篇
  1995年   25篇
  1994年   17篇
  1993年   33篇
  1992年   22篇
  1991年   15篇
  1990年   22篇
  1989年   21篇
  1988年   18篇
  1987年   8篇
  1986年   10篇
  1985年   5篇
  1984年   6篇
  1982年   6篇
  1980年   6篇
  1979年   10篇
  1978年   3篇
  1977年   5篇
  1976年   5篇
  1975年   4篇
  1974年   5篇
  1973年   7篇
  1968年   3篇
排序方式: 共有2195条查询结果,搜索用时 15 毫秒
991.
Adolescence is often thought of as a period during which the quality of parent-child interactions can be relatively stressed and conflictual. There are individual differences in this regard, however, with only a modest percent of youths experiencing extremely conflictual relationships with their parents. Nonetheless, there is relatively little empirical research on factors in childhood or adolescence that predict individual differences in the quality of parent-adolescent interactions when dealing with potentially conflictual issues. Understanding such individual differences is critical because the quality of both parenting and the parent-adolescent relationship is predictive of a range of developmental outcomes for adolescents. The goals of the research were to examine dispositional and parenting predictors of the quality of parents' and their adolescent children's emotional displays (anger, positive emotion) and verbalizations (negative or positive) when dealing with conflictual issues, and if prediction over time supported continuity versus discontinuity in the factors related to such conflict. We hypothesized that adolescents' and parents' conflict behaviors would be predicted by both childhood and concurrent parenting and child dispositions (and related problem behaviors) and that we would find evidence of both parent- and child-driven pathways. Mothers and adolescents (N5126, M age513 years) participated in a discussion of conflictual issues. A multimethod, multireporter (mother, teacher, and sometimes adolescent reports) longitudinal approach (over 4 years) was used to assess adolescents' dispositional characteristics (control/ regulation, resiliency, and negative emotionality), youths' externalizing problems, and parenting variables (warmth, positive expressivity, discussion of emotion, positive and negative family expressivity). Higher quality conflict reactions (i.e., less negative and/or more positive) were related to both concurrent and antecedent measures of children's dispositional characteristics and externalizing problems, with findings for control/regulation and negative emotionality being much more consistent for daughters than sons. Higher quality conflict reactions were also related to higher quality parenting in the past, positive rather than negative parent-child interactions during a contemporaneous nonconflictual task, and reported intensity of conflict in the past month. In growth curves, conflict quality was primarily predicted by the intercept (i.e., initial levels) of dispositional measures and parenting, although maintenance or less decrement in positive parenting, greater decline in child externalizing problems, and a greater increase in control/regulation over time predicted more desirable conflict reactions. In structural equation models in which an aspect of parenting and a child dispositional variable were used to predict conflict reactions, there was continuity of both type of predictors, parenting was a unique predictor of mothers' (but not adolescents') conflict reactions (and sometimes mediated the relations of child dispositions to conflict reactions), and child dispositions uniquely predicted adolescents' reactions and sometimes mothers' conflict reactions. The findings suggest that parent-adolescent conflict may be influenced by both child characteristics and quality of prior and concurrent parenting, and that in this pattern of relations, child effects are more evident than parent effects.  相似文献   
992.
Effects of maternal interference on social behavior toward mother and exploratory play were examined in a laboratory experimental paradigm. Subjects were 40 1-year-olds and their mothers. Mothers of the 20 interference-group infants were instructed periodically to physically interfere with their child's independent object play during the first half of the observation session. A postinterference free-play period immediately followed. The 20 control-group infants were permitted by mother to play freely throughout the session. Groups were matched for exposure to play materials. Despite its aversiveness, interference had no subsequent effect on infant social initiatives to mother, responsiveness to mother's social bids, or exploratory play.  相似文献   
993.
OBJECTIVE: Longitudinal associations among maternal personality, emotional expressions, and parenting were examined. DESIGN: Maternal parenting (sensitivity and intrusiveness) and positive emotional expressions were observed during a free-play session with toddlers at 18 (T1, n = 246) and 30 (T3, n = 216) months. Mothers completed a personality measure at T1 and a questionnaire measuring their emotional expressiveness (positive and negative) when toddlers were 24 months old (T2, n = 213). RESULTS: Dimensions of maternal personality and maternal emotional expressiveness were related to individual differences in maternal parenting behaviors, in particular to maternal sensitivity. Conscientiousness and Agreeableness at T1 were positively associated with observed positive emotional expressions at T1. Agreeableness, Openness to Experience, and Extraversion at T1 also were positively related to positive emotional expressions reported by mothers at T2. Maternal positive emotional expressions (T1 and T2), in turn, were associated with more sensitive behavior observed with toddlers at T3. CONCLUSION: In addition to direct effects of maternal personality on maternal parenting, mothers' emotional expressiveness was found to be a possible pathway for explaining relations of maternal personality and parenting.  相似文献   
994.
The Anatomy Learning Experiences Questionnaire (ALEQ) was designed by Smith and Mathias to explore students' perceptions and experiences of learning anatomy. In this study, the psychometric properties of a slightly altered 34‐item ALEQ (ALEQ‐34) were evaluated, and correlations with learning outcomes investigated, by surveying first‐ and second‐year undergraduate medical students; 181 usable responses were obtained (75% response rate). Psychometric analysis demonstrated overall good reliability (Cronbach's alpha of 0.85). Exploratory factor analysis yielded a 27‐item, three‐factor solution (ALEQ‐27, Cronbach's alpha of 0.86), described as: (Factor 1) (Reversed) challenges in learning anatomy, (Factor 2) Applications and importance of anatomy, and (Factor 3) Learning in the dissection laboratory. Second‐year students had somewhat greater challenges and less positive attitudes in learning anatomy than first‐year students. Females reported slightly greater challenges and less confidence in learning anatomy than males. Total scores on summative gross anatomy examination questions correlated with ALEQ‐27, Pearson's r = 0.222 and 0.271, in years 1 and 2, respectively, and with Factor 1, r = 0.479 and 0.317 (all statistically significant). Factor 1 also had similar correlations across different question types (multiple choice; short answer or essay; cadaveric; and anatomical models, bones, or radiological images). In a retrospective analysis, Factor 1 predicted poor end‐of‐semester anatomy examination results in year 1 with a sensitivity of 88% and positive predictive value of 33%. Further development of ALEQ‐27 may enable deeper understanding of students' learning of anatomy, and its ten‐item Factor 1 may be a useful screening tool to identify at‐risk students. Anat Sci Educ 10: 514–527. © 2017 American Association of Anatomists.  相似文献   
995.
996.
Neonatal guinea pigs were given escapable, inescapable, or no shock and were later tested as adults on a signaled escape/avoidance task. During the neonatal period, the animals that could escape shock learned to do so quickly and steadily increased their overall level of activity, while those that could not, displayed a consistent decline in activity. Furthermore, during adult escape/avoidance sessions, guinea pigs, that could control neonatal shock were superior to those that lacked such control. These findings extend the generality of the interference effect to the guinea pig and highlight the influence of early control of aversive events on this phenomenon.  相似文献   
997.
This paper serves two purposes. The first is an examination of a public policy, the Queensland Department of Education's Equal Opportunity Policy for Girls and Boys (1981) and the Implementation Guidelines (1988) for that policy within the context of the pedagogical practices of one secondary school. The second purpose is to answer a criticism often levelled at structural theories of education. This criticism centres around the inability of structural theories to account for the real life experiences of teachers and students. Bernstein's (1986) theory of Pedagogic Discourse and Fernandes’ (1988) work on Resistance theory are applied to three levels of educational practice; public policy, school practices and the everyday experiences of a group of female students. Through this analysis, movement towards a more satisfactory explanation of the intersection of gender and education is made.  相似文献   
998.
This study examines associations between childhood maltreatment and developmental trajectories of sexual risk behaviors (SRBs) in a sample of 882 sexually active adolescent girls, predominantly Hispanic or Black, assessed every 6 months between 13 and 23 years. Latent profile analyses revealed four distinct maltreatment profiles: Low Maltreatment (76%), Moderate Emotional Neglect Only (15%), Severe Physical/Emotional Abuse (3%), and Severe Sexual Abuse (6%). Multilevel growth analyses showed the Moderate Emotional Neglect Only and Severe Sexual Abuse profiles exhibited more SRBs starting in late adolescence, and the Severe Sexual Abuse profile also exhibited a faster increase than the Low Maltreatment profile. Understanding heterogeneity within maltreated populations may have important implications for healthy sexual development.  相似文献   
999.
A significant gap in emerging literacy intervention with preschoolers relates to a skill that is crucial to later reading comprehension–the ability to engage in inferencing. This article presents a theoretical rationale for fostering inferential language during book sharing with preschool children, and provides research‐based ideas for how this can be best accomplished. It is suggested that, at the preschool level, children can be supported in their ability to make inferences about stories read aloud to them by having adults ask both literal and inferential questions that, first and foremost, relate to the causal structure of stories. Additionally, questions focused on informational and evaluative inferences serve to further enhance story comprehension. A rubric for connecting such questions to the elements of story grammar is offered, and a specific example from a published preschool level storybook is provided. © 2008 Wiley Periodicals, Inc.  相似文献   
1000.
Working within the developmental science research framework, this study sought to capture a dynamic and complex view of student mobility. Second‐ through fifth‐grade data (N = 1,003, predominantly Caucasian) were drawn from a longitudinal study, and growth curve analyses allowed for the examination of mobility effects within the context of other factors that put children at risk, including behavior problems and family stress. School changes predicted declines in academic performance and classroom participation but not positive attitude toward school. Time‐varying factors such as peer acceptance and teacher support had a positive influence on the growth trajectories of child outcomes. Additionally, teacher support had a particularly strong influence on positive attitudes toward school among children who had more school changes.  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