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   6452篇
  免费   390篇
  国内免费   2篇
  2021年   57篇
  2020年   112篇
  2019年   131篇
  2018年   176篇
  2017年   221篇
  2016年   220篇
  2015年   159篇
  2014年   192篇
  2013年   749篇
  2012年   304篇
  2011年   328篇
  2010年   204篇
  2009年   216篇
  2008年   266篇
  2007年   282篇
  2006年   236篇
  2005年   236篇
  2004年   229篇
  2003年   203篇
  2002年   214篇
  2001年   103篇
  2000年   112篇
  1999年   106篇
  1998年   92篇
  1997年   85篇
  1996年   95篇
  1995年   88篇
  1994年   77篇
  1993年   62篇
  1992年   82篇
  1991年   61篇
  1990年   53篇
  1989年   50篇
  1988年   50篇
  1987年   42篇
  1986年   46篇
  1985年   62篇
  1984年   59篇
  1983年   50篇
  1982年   72篇
  1981年   72篇
  1980年   52篇
  1979年   52篇
  1978年   43篇
  1977年   66篇
  1976年   40篇
  1975年   48篇
  1974年   38篇
  1973年   45篇
  1972年   35篇
排序方式: 共有6844条查询结果,搜索用时 171 毫秒
311.
To elucidate processes underlying therapeutic change in a large-scale randomized clinical trial, we examined whether alterations in self-reported parenting practices were associated with the effects of behavioral, medication, or combination treatments on teacher-reported outcomes (disruptive behavior, social skills, internalizing symptoms) in children with attention-deficit hyperactivity disorder (ADHD). Participants were 579 children with Combined-type ADHD, aged 7–9.9 years, in the Multimodal Treatment Study of Children with ADHD (MTA). We uncovered 2 second-order factors of parenting practices, entitled Positive Involvement and Negative/Ineffective Discipline. Although Positive Involvement was not associated with amelioration of the school-based outcome measures, reductions in Negative/Ineffective Discipline mediated improvement in children's social skills at school. For families showing the greatest reductions in Negative/Ineffective Discipline, effects of combined medication plus behavioral treatment were pronounced in relation to regular community care. Furthermore, only in combination treatment (and not in behavioral treatment alone) was decreased Negative/Ineffective Discipline associated with reduction in children's disruptive behavior at school. Here, children in families receiving combination treatment who showed the greatest reductions in Negative/Ineffective Discipline had teacher-reported disruptive behavior that was essentially normalized. Overall, the success of combination treatment for important school-related outcomes appears related to reductions in negative and ineffective parenting practices at home; we discuss problems in interpreting the temporal sequencing of such process-outcome linkages and the means by which multimodal treatment may be mediated by psychosocial processes related to parenting.  相似文献   
312.
Parenting and family stress treatment outcomes in the MTA study were examined. Male and female (579), 7–9-year-old children with combined type Attention Deficit Hyperactivity Disorder (ADHD), were recruited at six sites around the United States and Canada, and randomly assigned to one of four groups: intensive, multi-faceted behavior therapy program alone (Beh); carefully titrated and monitored medication management strategy alone (MedMgt); a well-integrated combination of the two (Comb); or a community comparison group (CC). Treatment occurred over 14 months, and assessments were taken at baseline, 3, 9, and 14 months. Parenting behavior and family stress were assessed using parent-report and child-report inventories. Results showed that Beh alone, MedMgt alone, and Comb produced significantly greater decreases in a parent-rated measure of negative parenting, Negative/Ineffective Discipline, than did standard community treatment. The three MTA treatments did not differ significantly from each other on this domain. No differences were noted among the four groups on positive parenting or on family stress variables. Results are discussed in terms of the theoretical and empirically documented importance of negative parenting in the symptoms, comorbidities and long-term outcomes of ADHD.  相似文献   
313.
From carrots to frogs to sheep and finally to humans, the history of cloning is a fascinating study of the interplay between science and popular culture. Imagination and discovery provide mutual impetus in the evolving science and cultural phenomenon of cloning. Its history is a paradigm of science unfiction: What once belonged unequivocally on the pages of science fiction is now emerging in flesh and blood. Writers, movie producers, ethicists, and all manner of social commentators, no less than scientists, have all participated in the creation of the human clone as an idea and as a biological entity. While the clone stands apart as having only one genetic parent, it truly is a brainchild of multifarious origins.  相似文献   
314.
Lexical ambiguity research over the last two decades is reviewed, with a focus on how that literature applies to understanding the resolution of meaning for words. Early models of ambiguity processing dealt almost exclusively with the time course of the effects of context on lexical access, in order to address the issue of modularity of lexical access. Newer models of ambiguity processing accommodate recent findings of early context effects that are contingent on both strength of context and meaning frequency. The most important contribution of these newer models of ambiguity processing is not to the modularity debate, but to investigation of the range of parameters affecting the entire meaning resolution process, including meaning access as well as the integration of meanings into context. As an example of this approach, we describe a simple quantitative model of meaning resolution that subsumes many other models as parametric variations.  相似文献   
315.
This study assessed the effectiveness of modelling therapy as a treatment for test anxiety and investigated the role of model affect and consequences in determining that effectiveness. Twenty-four test anxious subjects were shown one of four one-hour modelling displays of intelligence testing sessions. The displays represented combinations of calm or anxious model affect and positive or negative consequences. Two self report and two performance measures of test anxiety were analyzed by means of a 2 × 2 vs. control group factorial design. The results indicated an overall significant improvement on modelled intelligence tests for the experimental groups vs. the control group. Differential effects were also found depending upon the characteristics of the modelling display. Viewing anxious models lead to a significant increase in introductory psychology grades and viewing negative consequences lead to a decrease in self-reported test anxiety. The present results question the notion that the most effective modelling scenes are ones displaying calm models and positive consequences (Bandura, 1969). Parallels were drawn between the results of the research and the recent success of implosively-oriented behaviour therapies.  相似文献   
316.
317.
Rober P 《Family process》2005,44(4):477-495
In this article, the focus is on the therapist's self, which will be in line with Bakhtin's thinking, viewed as a dialogical self. First, the dialogical view of the self is situated in the context of psychology's traditional focus on the individual self. Then, leaning on Bakhtin and Volosinov, the self is described as a dialogue of multiple inner voices. Some of the implications of this concept for family therapy practice are examined, focusing especially on the therapist's participation in the therapeutic process and on the therapist's inner conversation. The author argues that not-knowing does not only refer to the therapist's receptivity and respect but also implies that the therapist is aware of his or her experience and reflects on how his or her inner conversation might inform and enrich the therapeutic conversation. Finally, these ideas are illustrated with a brief clinical vignette.  相似文献   
318.
The authors examined whether parental major depressive disorder (MDD) is associated with course of depression and other psychopathology among formerly depressed adolescents as they enter adulthood. The sample consisted of 244 individuals (age 24) in a longitudinal study who had experienced MDD by 19. Maternal MDD was associated with MDD recurrence, chronicity and severity, anxiety disorders, and (among sons only) lower psychosocial functioning in offspring between the ages of 19 and 24. Paternal MDD was associated with lower functioning. Sons of depressed fathers had elevated suicidal ideation and attempt rates in young adulthood. Recurrent paternal MDD was associated with depression recurrence in daughters but not sons. The impact of parental MDD on offspring could not be attributed to characteristics of the offspring's depression prior to age 19.  相似文献   
319.
Although the negotiations literature identifies a variety of approaches for improving one's power position, the relative benefits of these approaches remain largely unexplored. The empirical study presented in this article begins to address this issue by examining how the size of the bargaining zone affects the relative benefit of an advantage in one's BATNA (i.e., having a better alternative than one's counterpart) versus contribution (i.e., contributing more to the relationship than one's counterpart) for negotiator performance. Results indicate that whereas BATNAs exerted a stronger effect on resource allocations than contributions when the bargaining zone was small, an advantage in contributions exerted a stronger effect on resource allocations than BATNAs when the bargaining zone was large. These findings provide needed insight and supporting evidence for how to alter one's power relationship in negotiation.  相似文献   
320.
This project revisits the perennial debate over the relationship between job performance and turnover. Disputing traditional findings, C. Trevor, B. Gerhart, and J. Boudreau (1997) observed that high and low performers quit more than do average performers. They further challenged received wisdom by showing that promotions can induce turnover, especially among poor performers, by signaling ability. The authors sought to replicate and extend these unconventional findings by exploring curvilinear and moderating effects on the performance-exit relationship among 11,098 Swiss nationals employed in a bank. Survival regression revealed that performance is curvilinearly related to quits and that bonus pay deterred superior performers from leaving more than did pay increases. Further, the average number of job levels advanced per promotion rather than promotion rate increased quit risks. Cultural and organizational moderators of performance-termination associations and effective strategies for retaining top performers are discussed.  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