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   2929篇
  免费   86篇
  国内免费   2篇
  2023年   14篇
  2021年   14篇
  2020年   36篇
  2019年   55篇
  2018年   73篇
  2017年   61篇
  2016年   67篇
  2015年   55篇
  2014年   61篇
  2013年   360篇
  2012年   105篇
  2011年   96篇
  2010年   79篇
  2009年   69篇
  2008年   91篇
  2007年   107篇
  2006年   96篇
  2005年   101篇
  2004年   107篇
  2003年   89篇
  2002年   95篇
  2001年   47篇
  2000年   41篇
  1999年   57篇
  1998年   54篇
  1997年   36篇
  1996年   61篇
  1995年   53篇
  1994年   53篇
  1993年   48篇
  1992年   55篇
  1991年   35篇
  1990年   39篇
  1989年   41篇
  1988年   33篇
  1987年   39篇
  1986年   34篇
  1985年   49篇
  1984年   32篇
  1983年   45篇
  1982年   40篇
  1981年   31篇
  1980年   32篇
  1979年   21篇
  1978年   25篇
  1977年   23篇
  1976年   19篇
  1975年   18篇
  1974年   23篇
  1973年   17篇
排序方式: 共有3017条查询结果,搜索用时 31 毫秒
931.
In two experiments, subjects trained in data entry, typing one 4-digit number at a time. At training, subjects either typed the numbers immediately after they appeared (immediate) or typed the previous number from memory while viewing the next number (delayed). In Experiment 2 stimulus presentation time was limited and either nothing or a space (gap) was inserted between the second and third digits. In both experiments after training, all subjects completed a test with no gap and typed numbers immediately. Training with a memory load improved speed across training blocks (Experiment 1) and eliminated the decline in accuracy across training blocks (Experiment 2), thus serving as a cognitive antidote to performance decrements. An analysis of each keystroke revealed different underlying processes and strategies for the two training conditions, including when encoding took place. Chunking (in which the first and last two digits are treated separately) was more evident in the immediate than in the delayed condition and was exaggerated with a gap, even at test when there was no gap. These results suggest that such two-digit chunking is due to stimulus encoding and motor planning processes as well as memory, and those processes transferred from training to testing.  相似文献   
932.
933.
Reliabilities of scores for experimental tasks are likely to differ from one study to another to the extent that the task stimuli change, the number of trials varies, the type of individuals taking the task changes, the administration conditions are altered, or the focal task variable differs. Given that reliabilities vary as a function of the design of these tasks and the characteristics of the individuals taking them, making inferences about the reliability of scores in an ongoing study based on reliability estimates from prior studies is precarious. Thus, it would be advantageous to estimate reliability based on data from the ongoing study. We argue that internal consistency estimates of reliability are underutilized for experimental task data and in many applications could provide this information using a single administration of a task. We discuss different methods for computing internal consistency estimates with a generalized coefficient alpha and the conditions under which these estimates are accurate. We illustrate use of these coefficients using data for three different tasks.  相似文献   
934.
Theoretical writings on intersectionality have long emphasized the unique ways women of color experience race/ethnicity and gender, particularly compared to White women; however, little empirical evidence exists in support of this claim. This mixed-methods study adds to the empirical base by comparing and contrasting these experiences among women of color and White women. In a sample of 47 women of color and 18 White women, there were significant racial/ethnic differences in terms of (a) the perceived connection of race/ethnicity and gender, (b) the social contexts in which gender becomes salient, and (c) the meaningfulness of the intersection of race/ethnicity and gender. The findings lend empirical support for intersectionality as a useful psychological framework for understanding multiple social identities.  相似文献   
935.
Although ethics consultation is offered as a clinical service in most hospitals in the United States, few valid and practical tools are available to evaluate, ensure, and improve ethics consultation quality. The quality of ethics consultation is important because poor quality ethics consultation can result in ethically inappropriate outcomes for patients, other stakeholders, or the health care system. To promote accountability for the quality of ethics consultation, we developed the Ethics Consultation Quality Assessment Tool (ECQAT). ECQAT enables raters to assess the quality of ethics consultations based on the written record. Through rigorous development and preliminary testing, we identified key elements of a quality ethics consultation (ethics question, consultation-specific information, ethical analysis, and conclusions and/or recommendations), established scoring criteria, developed training guidelines, and designed a holistic assessment process. This article describes the development of the ECQAT, the resulting product, and recommended future testing and potential uses for the tool.  相似文献   
936.
937.

This study was designed to examine the effectiveness of an evidence-based parenting program—Triple P Positive Parenting Program—in shelter settings for families experiencing homelessness. The intervention has not previously been evaluated in a shelter setting, where there is a critical need for evidence-based parenting programs. Using a within-group pre- and post-intervention with 3-month follow-up design, 39 mothers residing in a shelter with a child ages 2–6 years participated. Results of this preliminary study showed positive effects of Triple P Discussion Groups. There were significant improvements in mother-reported parenting practices and child behavior across time, but no change in child maltreatment risk as measured by the Brief Child Abuse Potential Inventory. Mothers rated satisfaction with the program high immediately after the group and again three weeks later. Results showed Triple P Discussion Groups are acceptable and have some positive effects for this vulnerable population in need of parenting support. We discuss implications of findings, limitations of the study (including a 33% attrition rate), and recommendations for further study.

  相似文献   
938.
Journal of Child and Family Studies - Prior research demonstrates an association between parental divorce and separation and a range of negative child outcomes, including sleep difficulties. We...  相似文献   
939.
Maternal substance use during the prenatal period often results in infants with compromised health outcomes. The American College of Obstetrics and Gynecology recommends screening, brief motivational interviewing, and referral to existing treatment for women who use illicit substances prenatally. However, many of these women do not present for prenatal care and are not identified as using substances until delivery of their infants, many of whom are admitted to the neonatal intensive care unit (ICU). We describe a case from a novel, hospital-initiated intervention study, Moms in ACTion (MIACT) that combines motivational interviewing (MI) and acceptance and commitment therapy (ACT) to target new mothers with an infant in the neonatal ICU who screen positive for illicit substance use prenatally or at delivery. The MIACT program consists of an adaptive intervention that includes up to three sessions. Initiation of substance use treatment and reproductive care via a gynecological visit are the primary targets of the intervention. Urine samples were collected at 2- and 6-month follow-up visits. The participant successfully completed the program, achieved both treatment outcomes, and had negative urine drug screens at follow-up visits. Improvements in readiness to change and psychological flexibility were also observed. The present case report of a new mother who used substances demonstrated feasibility for combining MI and ACT treatments and the potential for MIACT to increase treatment and contraception initiation, ultimately preventing future substance-exposed pregnancies.  相似文献   
940.
Behavioral activation (BA) is a well-supported treatment approach, but little research has been conducted on the effectiveness of this treatment within publicly funded community mental health settings. We examined the feasibility of conducting a randomized trial examining the effectiveness of nine sessions of BA as a treatment for major depressive disorder (MDD) in a community mental health clinic (CMHC) setting. Following adaptation of a BA manual and training of BA therapists, 80 patients seeking treatment at a CMHC were randomized, with a 3:1 randomization rate of BA to nine sessions of treatment as usual (TAU). Feasibility assessments indicated that only one eligible patient refused randomization and, of patients who attended at least one session, the median number of sessions was six for the BA group and eight for the TAU group. Of three postbaseline monthly assessments, 71.3% (171/240) were successfully obtained. On average, patients in the BA condition completed homework assignments 83.9% of the time. Treatment fidelity ratings indicated that substantially more BA techniques were delivered in the BA group compared to the TAU group (d = 2.11). Measures of BA mechanisms improved significantly over time and these changes were significantly associated with change in depressive symptoms. These results indicate that it is feasible to conduct a randomized study of BA for MDD in a CMHC setting. In addition, the study reconfirmed the potential importance of theory-relevant BA mechanism variables. Following these findings, further investigation into the effectiveness of BA in this setting is needed.  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