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   23733篇
  免费   247篇
  国内免费   2篇
  2023年   41篇
  2022年   31篇
  2021年   44篇
  2020年   95篇
  2019年   131篇
  2018年   3583篇
  2017年   2941篇
  2016年   2363篇
  2015年   291篇
  2014年   209篇
  2013年   541篇
  2012年   733篇
  2011年   2565篇
  2010年   2597篇
  2009年   1585篇
  2008年   1868篇
  2007年   2281篇
  2006年   165篇
  2005年   332篇
  2004年   300篇
  2003年   230篇
  2002年   164篇
  2001年   71篇
  2000年   97篇
  1999年   39篇
  1998年   60篇
  1997年   55篇
  1996年   42篇
  1995年   23篇
  1994年   22篇
  1993年   15篇
  1992年   27篇
  1991年   20篇
  1990年   28篇
  1989年   21篇
  1988年   19篇
  1987年   25篇
  1986年   27篇
  1985年   24篇
  1984年   31篇
  1983年   33篇
  1982年   22篇
  1981年   16篇
  1980年   27篇
  1979年   20篇
  1978年   16篇
  1977年   20篇
  1976年   18篇
  1975年   8篇
  1974年   9篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Parents are perhaps the most direct and profound influences on children’s development of emotional competence. For example, how and what emotions parents express in the family has implications for children’s ability to understand and regulate their emotions. What is less well understood is what potential environmental or contextual factors impact parents’ emotional expressiveness, particularly in high-risk samples prone to atypical emotional expressiveness (e.g., deficits in the production and recognition of emotional expressions). The present longitudinal study examined the association between life changes and parents’ expression of positive and negative emotions, as well as, how these associations changed over time in a sample of maltreating mothers. Eighty-eight mothers with a substantiated history of physical abuse completed measures of emotional expressiveness and life changes experienced over the past 6 months when their children were in preschool, kindergarten, and first grade. Results indicated that life changes decreased over time, while parental emotional expressiveness remained stable. Moreover, life changes were associated across time with the expression of negative emotions, but were unrelated to expressions of positive emotions. Findings have important implications for understanding emotional expressiveness in high-risk samples.  相似文献   
992.
Although links have been found between parents’ and teachers’ (caregivers’) attitudes about aggressive behavior, their responses to aggressive behaviour in children, and those children’s own use of aggressive behaviour, most research has focused on primary and secondary school contexts and has examined the influence of parents and teachers separately. The current study explored both parents’ and teachers’ beliefs and intervention strategies for relational and physical aggression in early childhood settings. Teachers (N?=?18; Mage?=?34.8 years) and parents (N?=?68; Mage?=?32.2 years) were presented with vignettes portraying relational and physical aggression. Following each vignette, their perceptions of the seriousness of the act, empathy for the victim, likelihood to intervene, and intervention strategies used to respond to each vignette were assessed. Teachers were also interviewed about examples of aggression that have been seen in preschool age children. Results indicated that caregivers viewed relational compared to physical aggression as more normative, and had less empathy for, and were less likely to intervene in instances of relationally aggressive behaviour. They also recommended more passive intervention strategies towards relationally aggressive children and more direct strategies towards physically aggressive children. Interview responses indicated that teachers perceived the primary cause of aggression to be related to developmental characteristics of the child. Implications for how these findings about adult–child interactions impact the development of relational and physical aggression are discussed.  相似文献   
993.
To date over two billion dollars have been invested in the John F. Chafee Foster Care Independence Program (CFCIP) to help youth who are transitioning out of foster care to achieve self-sufficiency through an array of independent living services. Although states are required to report CFCIP service provision to the National Youth in Transition Database (NYTD), the degree of heterogeneity of the aging out population from the service receipt perspective and state implementation is unknown. The CFCIP calls for a deeper understanding of the underlying patterns of services receipt to prepare for youth’s successful transition to adulthood. Based on the population of 68,057 first-time youth who received CFCIP services in FY2011-FY2013 from the NYTD, we used multi-level latent class analysis (MLCA) to identify underlying combinations of service receipt that may be influenced by youth-level and state-level characteristics. We identified the most preferred model based on interpretability, fit statistics, and split-half replication. The optimal model was a three-class, MLCA solution characterized by a high-service receipt profile, an independent living assessment and academic support receipt profile, and a limited service receipt profile. Among male and female youth, age, education level, and whether states serve youth aged 18 or above were significant characteristics associated with LCA profile membership. States could benefit from understanding existing service receipt patterns and gaps to optimize decisions on service delivery in order to meet youth needs and to identify specific services that may prepare youth aging out of foster care towards positive outcomes.  相似文献   
994.
The benefits of parental involvement in children’s education have been well established but increasing evidence suggests that overparenting may have adverse effects on children. The question of whether excessive parental involvement hinders children’s academic and psychosocial development warrants further investigations. This study examined the associations of parental educational involvement at home and in school with academic performance and psychological health of 507 Chinese Grade 3 schoolchildren in Hong Kong. Parents reported on their level of involvement in children’s schooling and their children’s psychosocial issues. Children were surveyed to determine their school engagement, and their Chinese language and mathematics attainment was assessed. We also explored the underlying mechanism by testing children’s engagement with school as a mediator of the relationships. Our results showed that home-based parental educational involvement was positively associated with children’s language competence and psychosocial wellbeing, and the associations were linked through engaging children with school. However, the benefits reached a plateau at higher level of parental involvement in children’s learning at home. School-based parental involvement had an indirect effect on children’s prosocial behavior through school engagement. These findings highlight the significance of optimal level of parental involvement in children’s education at home for children’s development.  相似文献   
995.
Young ethnic minority parents may lack psychological and financial resources to handle parenthood, increasing the risk of negative psychosocial and parenting outcomes. Partner support has been associated with positive coparenting, although findings have been mixed. Support from young parents’ own parents (“grandparents”) has been linked to adaptive family outcomes and may be particularly protective for African American and Latino parents whose cultures espouse interdependence. This study examined partner support and grandparent support as individual predictors of change in coparenting quality, and tested whether grandparent support moderated the relationship between partner support and change in coparenting quality over the first postpartum year. Participants were 136 African American and Latina adolescent mothers (age range?=?15–21 years) and their babies’ fathers (15–41 years). Partner and grandparent support were measured at 6 months postpartum. Coparenting quality was measured at 6 and 12 months postpartum, and change in coparenting quality was measured using latent change scores. Structural equation modeling was used to test the hypothesis that the relationship between partner support and change in coparenting quality would be moderated by grandparent support. Fit indices indicated a well-fitted model. Results demonstrated that the moderator term (partner support?×?grandparent support) significantly predicted change in coparenting quality. Specifically, partner support was positively associated with changes in coparenting quality when grandparent support was high; however, that association became weaker and changed direction for lower levels of grandparent support. Findings highlight the need to assess parents’ social support networks and grandparents’ impact on the coparenting quality of this at-risk population.  相似文献   
996.
Guided by both a Piagetian and a naïve theories perspective on disease concepts, this study examined children’s thinking about HIV/AIDS, with special attention to its development, coherence, and sociocultural correlates. It examined age differences among Mexican-American and Euro-American children aged 8 to 13 (N?=?158) in both Piagetian level of causal understanding (independent of correctness) and the causal knowledge central to an intuitive theory of AIDS (knowledge of risk behaviors and of the viral disease agent). It explored theoretical coherence in terms of implications of causal understanding and causal knowledge for knowledge of how to prevent AIDS and willingness to interact with people who have it. As predicted, scores on all measures increased significantly with age, and causal knowledge of risk factors exceeded knowledge of corresponding prevention rules. In multiple regression analyses, causal knowledge of both risk factors and the viral disease agent predicted knowledge of prevention and willingness to interact, even with age and other measures controlled. Prevention knowledge predicted willingness to interact even better, whereas the Piagetian measure of casual understanding did not predict either prevention knowledge or willingness to interact. Ethnic group differences were not evident but parent education was related to greater viral knowledge and willingness to interact. The results suggest a good deal of coherence in children’s thinking about this disease while also suggesting the desirability of making explicit the implications of critical causal information about an unfamiliar disease for preventing the disease without stigmatizing those who have it.  相似文献   
997.
Our objective was to predict change in maternal stress over the course of a randomized clinical trial comparing the efficacy of two interventions for Oppositional Defiant Disorder (ODD): Parent Management Training and Collaborative & Proactive Solutions. In a secondary analysis of data collected from this randomized clinical trial, we examined whether children’s self-reported positive relations with their parents impacted responsiveness to treatment, which in turn impacted maternal stress. One hundred thirty-four children and their parents (38.1% female, ages 7–14, M age?=?9.51, SD?=?1.77) were tracked across three time points: pre-treatment; one-week post-treatment; and six-month post-treatment. Hierarchical linear models tested change in children’s reports of positive relations with parents, clinician reports of ODD severity, and maternal reports of parenting stress. Models then tested multilevel mediation from positive relations with parents, through ODD severity, onto maternal stress. Hypothesized indirect effects were supported such that children’s reports of positive views toward parents uniquely predicted reductions in ODD severity over time, which in turn uniquely predicted reductions in maternal stress. Results highlight the promise of potential secondary benefits for parents following interventions for children with oppositional problems. Furthermore, results underscore the importance of the parent–child relationship as both a protective factor and as an additional target to complement interventions for child disruptive behaviors.  相似文献   
998.
The deadliest U.S. school shooting to date, occurring on February 14, 2018 at Marjory Stoneman Douglas High School in Parkland, Florida serves as a powerful reminder that school violence is ever present. Addressing school violence, however, has been an elusive endeavor. The purpose of this review is to provide a historical examination of United States intentional mass school shootings in the 20th and 21st centuries. In addition, implications for students, schools, and society are discussed in light of policy and legislative initiatives as well as school-based prevention and intervention tiered models of support, such as positive behavior interventions and supports (PBIS).  相似文献   
999.
Many researchers have reported elevated rates of emotional, behavioral, and social competence problems (EBSP) in children with epilepsy. Although executive function has been found to be associated with EBSP in children with typical development, almost no research has looked at the individual components of executive function as potential predictors of EBSP in children with epilepsy. This is surprising given the deficits in executive function in children with epilepsy. We investigated EBSP and executive function in 42 children with epilepsy, aged 6.0 to 18.1 years and found, as expected, that EBSP were associated with executive function in these children even after epilepsy-related variables, such as seizure type, were accounted for. However, different components of executive function were related to different emotional, behavioral, and social competence problems in these children. Shifting of mental sets was a significant predictor of emotional, behavioral, and social competence problems whereas inhibition was a significant predictor of behavioral problems. This suggests that different executive function profiles in children with epilepsy may place them at-risk for developing different types of emotional, behavioral, and social competence problems. These results may help researchers and clinicians develop new techniques to identify and treat emotional, behavioral, and social competence problems in children with epilepsy.  相似文献   
1000.
The current study compared parents’ emotion regulation (ER) in clinical (those with a child with externalizing behavioral problems) and low-risk comparison families. Additionally, mediation models were explored with parent ER predicting child behavior problems through child ER. Participants were 60 families with children (71.7% boys; 73% Caucasian) ages 2 through 8 years (M?=?4.62; SD?=?1.69) from a rural population in the United States: 34 clinical families referred for parent training and 26 nonclinical families. A blocking design was used to balance the two groups on key demographic characteristics. Parents’ and children’s ER was assessed using parent-report surveys and structured behavioral observations. Analyses indicated higher rates of parental emotion dysregulation (specifically, more difficulty when upset with achieving goal-directed behaviors, p?=?.01, d?=?0.67; controlling impulses, p?=?.01, d?=?0.64; limited use of ER strategies, p?=?.02, d?=?0.62; and more negative verbalizations to their child during the observed task, p?<?.01, d?=?0.73) and child emotion dysregulation (specifically, more difficulty as reported by parents, p?<?.01, d?=??2.42) in the clinical group. Mediational analyses indicated there were indirect paths from parental ER to children’s behavioral problems through child ER. Findings from this research suggest a need to measure and target ER in both parents and their children when working with families who are referred for treatment of child behavior problems.  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