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   3420篇
  免费   121篇
  国内免费   2篇
  2019年   44篇
  2018年   52篇
  2017年   54篇
  2016年   69篇
  2015年   47篇
  2014年   56篇
  2013年   357篇
  2012年   96篇
  2011年   112篇
  2010年   73篇
  2009年   74篇
  2008年   123篇
  2007年   101篇
  2006年   103篇
  2005年   106篇
  2004年   88篇
  2003年   107篇
  2002年   115篇
  2001年   55篇
  2000年   43篇
  1999年   54篇
  1998年   37篇
  1997年   45篇
  1996年   43篇
  1995年   37篇
  1994年   44篇
  1993年   54篇
  1992年   36篇
  1991年   54篇
  1990年   41篇
  1989年   30篇
  1988年   40篇
  1987年   44篇
  1986年   37篇
  1985年   42篇
  1984年   62篇
  1983年   45篇
  1982年   55篇
  1981年   57篇
  1980年   39篇
  1979年   46篇
  1978年   40篇
  1977年   58篇
  1976年   53篇
  1975年   50篇
  1974年   53篇
  1973年   53篇
  1972年   28篇
  1967年   28篇
  1966年   38篇
排序方式: 共有3543条查询结果,搜索用时 31 毫秒
991.
This study examined the relative contributions of parental reports of child-related and parent-related stress to their estimates of expressive and receptive language skills on the Minnesota Child Development Inventory in 152 children referred to a communicative disorders clinic. Correlational analysis showed moderately high agreement between parental estimates and objective measures of expressive and receptive language ability. Multiple-regression analyses revealed that independent measures of language acquisition accounted for the greatest amount of variance in parental estimates of expressive and receptive language skills. Stressful child behavior accounted for a small but statistically significant proportion of the variance in estimates of expressive and receptive language skills. Parental stress, in contrast, did not contribute significantly to language estimates. These findings suggest that parents are able to formulate estimates of language development which are relatively independent of personal or child-related stressors.  相似文献   
992.
993.
In two experiments, subjects recorded the frequency of occurrence of 12 classes of events each week for 3 months. During a final test they estimated frequency of occurrence of events either under time restrictions (Experiment 1) or difference priming instructions (Experiment 2). They also made (metamemory) estimates of the accuracy of their estimates. Time restrictions during an initial estimate did not affect the accuracy of frequency or metamemory estimation but a second estimate did increase accuracy. Priming instructions affected accuracy of metamemory estimates as well as the accuracy of estimates for high-frequency events. Metamemory error increased with event frequency.  相似文献   
994.
995.
Goal Attainment Scaling (GAS) is described as a potentially useful way of evaluating goal attainment of individual counseling provided to public school adolescents with conduct problems. Utilization of the GAS method for individual counseling involves a counselor (e.g., school psychologist) and a pupil in goal setting, program design, goal attainment scaling, and goal attainment evaluation activities. An application of the GAS method to evaluate goal attainment of individual counseling of conduct problem adolescents in an urban high school is presented, and formative evaluation data pertaining to practical and technical properties of the approach are reported. Advantages and limitations of the GAS method are discussed.  相似文献   
996.
We examined the effectiveness of the Qungasvik (Tools for Life) intervention in enhancing protective factors as a universal suicide and alcohol prevention strategy for young people ages 12−18 living in highly affected rural Alaska Native communities. Four communities were assigned to immediate intervention or to a dynamic wait list. Outcomes were analyzed for 239 young people at four time points over two years of community intervention. Outcomes assessed two ultimate variable protective factors buffering suicide and alcohol risk, and three intermediate variable protective factors at the individual, family, and community level. Dose dependent intervention effects were associated with growth in ultimate but not intermediate variables. This evaluation of the Qungasvik intervention provides support for the effectiveness of its Indigenous strategies for suicide and alcohol misuse prevention in this rural Alaska Native setting. Though findings did not provide support for a theory of change where growth in ultimate variables is occasioned through effects on intermediate variables, research designs focused on young people who enter intervention at lower levels of preexisting protection hold promise for better understanding of intervention change processes. The Qungasvik intervention is responsive to an acute public health need for effective rural Alaska Native suicide and alcohol risk prevention strategies.  相似文献   
997.
Institutional rearing negatively impacts the development of children's social skills and executive functions (EF). However, little is known about whether childhood social skills mediate the effects of the foster care intervention (FCG) and foster caregiving quality following early institutional rearing on EF and social skills in adolescence. We examined (a) whether children's social skills at 8 years mediate the impact of the FCG on the development of EF at ages 12 and 16 years, and (b) whether social skills and EF at ages 8 and 12 mediate the relation between caregiving quality in foster care at 42 months and subsequent social skills and EF at age 16. Participants included abandoned children from Romanian institutions, who were randomly assigned to a FCG (n = 68) or care as usual (n = 68), and a never-institutionalized group (n = 135). At ages 8, 12, and 16, social skills were assessed via caregiver and teacher reports and EF were assessed via the Cambridge Neuropsychological Test Automated Battery. Caregiving quality of foster caregivers was observed at 42 months. FCG predicted better social skills at 8 years, which in turn predicted better EF in adolescence. Higher caregiver quality in foster care at 42 months predicted better social skills at 8 and 12 years, and better EF at 12 years, which in turn predicted 16-year EF and social skills. These findings suggest that interventions targeting caregiving quality within foster care home environments may have long-lasting positive effects on children's social skills and EF.  相似文献   
998.
999.
Infant-caregiver relationships are the crucial context for infant development and psychopathology. Considerable evidence suggests that infants may construct qualitatively different relationships with different caregivers. For these reasons, infant-caregiver relationships should be a centerpiece of assessment in infant mental health. We advocate assessing infant relationships with all important caregivers in both clinic based and naturalistic settings. In this article we describe our approach, which attends both to the external component of the relationship, behavioral interaction, as well as the internal component of the relationship, subjective experience. By integrating results from assessments of these two components, we determine both level of relationship adaptation and the specific domains of strengths and weaknesses. © 1997 Michigan Association for Infant Mental Health  相似文献   
1000.
Differences in the perceived usefulness of five multiple-attribute decision support systems versus a basic spreadsheet are empirically assessed. Twenty-four college faculty members participated in a repeated measures experiment in which they used decision support software for personal computers to analyse semistructured multiple-attribute problems. The software packages employed were Criterium, Expert Choice, Logical Decision, VIMDA, VISA and the spreadsheet package Quattro Pro. A questionnaire was developed to assess user-friendliness of the software, confidence in the procedure implemented by the software, and users’ confidence in their results when employing the decision aids. Time to reach a decision was also measured. Significant differences were fund in the overall way users ranked these aids, in the perceived user-friendliness and the confidence in procedure among aids, and in the time it took to arrive at a result. Comments from users are also reported. © 1997 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