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   441篇
  免费   47篇
  国内免费   1篇
  489篇
  2024年   4篇
  2023年   9篇
  2022年   7篇
  2021年   13篇
  2020年   28篇
  2019年   21篇
  2018年   41篇
  2017年   29篇
  2016年   42篇
  2015年   19篇
  2014年   21篇
  2013年   53篇
  2012年   29篇
  2011年   23篇
  2010年   20篇
  2009年   14篇
  2008年   17篇
  2007年   15篇
  2006年   14篇
  2005年   12篇
  2004年   13篇
  2003年   8篇
  2002年   3篇
  2001年   1篇
  2000年   2篇
  1999年   6篇
  1998年   1篇
  1997年   3篇
  1995年   2篇
  1993年   1篇
  1991年   1篇
  1990年   1篇
  1989年   3篇
  1987年   1篇
  1985年   1篇
  1984年   1篇
  1982年   1篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
  1976年   2篇
  1975年   1篇
  1974年   1篇
  1969年   1篇
  1966年   1篇
排序方式: 共有489条查询结果,搜索用时 0 毫秒
51.
The purpose of this research was to better understand the substance use and sexual risk taking behavior among high-risk adolescent populations placed in residential treatment facilities, including those in the foster care and juvenile justice systems. The primary predictors considered in this study included caregiver support, caregiver closeness, other adult support, adolescent self-disclosure/communication with caregiver, caregiver expectations about sexual behavior, and peer influence regards to drugs/alcohol and sexual behavior. Participants included 120 adolescent females in grades 7 to 12 (median grade?=?10; mean age 15.7 years), primarily African American (57.2 %) and White (29 %), in a residential treatment setting in a large urban area in the Midwest. Caregiver support and self-disclosure/communication with caregivers predicted condom use at most recent intercourse, but variables related to substance use were most consistently predictive of sexuality variables including onset and frequency of behavior. None of these support variables significantly predicted onset and frequency of substance use. Caregiver support was the contributing variable in predicting academic achievement.  相似文献   
52.
The purpose of this study was to determine the prevalence and individual risk factors of people who trade or sell sex among sexually active individuals seeking HIV and sexually transmitted infection (STI) testing. Using electronic agency records, an analysis of the characteristics of 5,029 youth and adults who voluntarily obtained HIV and STI testing was conducted. Multiple imputation procedures for missing data from 3 variables and logistic regression were conducted. A total of 128 individuals reported having traded sex. Nine variables had statistically significant associations with trading sex. Individuals who identified as White and female had lesser odds of trading sex, whereas individuals who were transgender, were living in a shelter, had been sexually assaulted, had a previous STI, had high-risk sex, or used drugs had greater odds of trading sex. Elevated levels of high-risk behavior in addition to sexual trauma should be considered in intervention research and community health practice. Implications for service providers and researchers are discussed.  相似文献   
53.
54.
This meta‐analysis of 152 published posttraumatic stress disorder (PTSD) clinical trials from 1990 to 2012 concluded that counseling generally produced a small to large effect of treatment across all comparison conditions at termination (d+ = 0.30 to 0.89). These gains were maintained at longest follow‐up (d+ = 0.58 to 0.86) for the wait‐list, treatment‐as‐usual, and single‐group comparisons, but not for the follow‐up placebo comparison (d+ = 0.15), probably because of the low power (j = 3 placebo studies). Clinical trial findings were synthesized using a random‐effects model. No effects of publication bias or moderating variables were evident. No difference was found between trauma‐focused and non‐trauma‐focused approaches. Implications for counseling practice and future PTSD outcome research are addressed.  相似文献   
55.
Across four studies, we demonstrate that effects obtained from the Implicit Relational Assessment Procedure, like those obtained from other indirect procedures, are not impervious to strategic manipulation. In experiment 1, we found that merely informing participants to “fake” their performance without providing a concrete strategy to do so did not eliminate, reverse, or in any way alter the obtained outcomes. However, when those same instructions orientated attention toward the core parameters of the task, participants spontaneously derived a strategy that allowed them to eliminate their effects (experiment 2). When the participants were provided with a viable response strategy, they successfully reversed the direction of their overall Implicit Relational Assessment Procedure effect (experiment 3). By refining the nature of those instructions, we managed to target and alter individual trial‐type effects in isolation with some success (experiment 4).  相似文献   
56.
This paper reports on two studies, each concerned with sex differences in the estimates of Gardner's ‘seven basic types of intelligence’. In the first study, 180 British adults were asked to estimate their own intelligence on the seven intelligence factors. Only one (mathematical/logical) showed a significant sex difference, with males believing they had higher scores than females. Factor analysis of these seven scales yielded three interpretable higher‐order factors. There was a similar sex difference on only one factor (mathematical/spatial intelligence), which showed males rating themselves higher than females. In the second study, 80 student participants completed the same seven estimates of intelligence, plus a standard sex‐role inventory, in order to separate sex and sex role in the self‐estimation of intelligence. A series of sex×sex‐role ANOVAs showed some effects, particularly for mathematical, musical, and spatial intelligence, but nearly always for sex and not sex role. Results suggest that previous studies which found consistent sex differences in self‐estimates of overall intelligence (‘g’) may have over‐exaggerated the issue as the difference is clearly confined to a limited number of factors of intelligence. Copyright © 1999 John Wiley & Sons, Ltd.  相似文献   
57.
The children's gambling task (CGT [Kerr, A., & Zelazo, P. D. (2004). Development of “Hot” executive function: The children's gambling task. Brain and Cognition, 55, 148–157]) involves integrating information about losses and gains to maximize winnings when selecting cards from two decks. Both cognitive complexity and control (CCC) theory and relational complexity (RC) theory attribute younger children's difficulty to task complexity. In CCC theory, identification of the advantageous deck requires formulation of a higher-order rule so that gains and losses can be considered in contradistinction. According to RC theory, it entails processing the ternary relation linking three variables (deck, magnitude of gain, magnitude of loss). We designed two less complex binary-relational versions in which either loss or gain varied across decks, with the other held constant. The three closely matched versions were administered to 3–5-year-olds. Consistent with complexity explanations, children in all age groups selected cards from the advantageous deck in the binary-relational versions, but only 5-year-olds did so on the ternary-relational CGT.  相似文献   
58.
In this study, the authors investigated the characteristics that predict best friend status in young children. One hundred and twenty-four preschool, kindergarten, and first-grade children identified their "best friend" and up to four "other friends" in their class. Teachers completed a questionnaire about each friendship to determine positive and negative features of the relationships. First, the authors used individual characteristics to predict if a child had a best friend. The variables age, gender, and peer acceptance predicted that a child would have a best friend. Second, positive friendship features positively predicted best friendships in analyses of all friendship pairs. Best friendships are meaningful relationships to children even at this young age and offer children more positive experiences than do other friendships.  相似文献   
59.
The goal of this study was to examine overgeneral autobiographical memory in a population at-risk for depression (i.e., children of depressed mothers). We predicted that children of depressed mothers would display less-specific memories than children of non-depressed mothers and that these results would be observed among children with no prior history of depression themselves. Participants in this study were children (age 8–14; 50% girls, 83% Caucasian) of mothers with (n = 103) or without (n = 120) a history of major depressive disorder during the child's life. Mothers' and children's diagnoses were confirmed with a diagnostic interview, and children completed the Autobiographical Memory Test and a measure of depressive symptoms. We found that children of depressed mothers, compared to children of non-depressed mothers, recalled less-specific memories in response to negative cue words but not positive cue words. Importantly, these results were maintained even when we statistically controlled for the influence of children's current depressive symptom levels and excluded children with currently depressed mothers. These results suggest that overgeneral autobiographical memory for negative events may serve as a marker of depression risk among high-risk children with no prior depression history.  相似文献   
60.
This study investigated both young men's and young women's perpetration of physical, sexual, and psychological forms of dating violence, examining predictors of violence including maternally or paternally perpetrated forms of various types of child maltreatment, as well as attitudes toward dating violence and dating violence victimization. Results of hierarchical linear regressions found that childhood experiences of maternal neglect predicted men's physical perpetration, and childhood sexual abuse predicted women's sexual perpetration and men's psychological perpetration. Further, positive attitudes toward dating violence predicted women's physical, psychological, and sexual perpetration, as well as men's sexual perpetration, and experiences of dating violence victimization were the strongest predictors of most forms of dating violence perpetration, particularly among women. Implications for future research and prevention initiatives 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