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   1813篇
  免费   97篇
  2023年   12篇
  2022年   17篇
  2021年   21篇
  2020年   36篇
  2019年   35篇
  2018年   51篇
  2017年   57篇
  2016年   71篇
  2015年   52篇
  2014年   57篇
  2013年   219篇
  2012年   96篇
  2011年   94篇
  2010年   56篇
  2009年   53篇
  2008年   92篇
  2007年   78篇
  2006年   82篇
  2005年   61篇
  2004年   69篇
  2003年   68篇
  2002年   56篇
  2001年   29篇
  2000年   36篇
  1999年   27篇
  1998年   30篇
  1997年   24篇
  1996年   18篇
  1995年   27篇
  1994年   16篇
  1993年   15篇
  1992年   19篇
  1991年   16篇
  1990年   11篇
  1989年   12篇
  1988年   7篇
  1987年   6篇
  1986年   14篇
  1985年   11篇
  1984年   12篇
  1983年   10篇
  1982年   11篇
  1981年   13篇
  1980年   7篇
  1979年   11篇
  1976年   8篇
  1975年   9篇
  1974年   7篇
  1973年   10篇
  1966年   8篇
排序方式: 共有1910条查询结果,搜索用时 15 毫秒
981.
This study analyzed the implications of sexual identity development for global, political, religious, and occupational identity development in 358 college students. Participants completed a written survey packet including the Extended Objective Measure of Ego Identity Status (EOM-EIS) and measures of sexual identity, physical/sexual preference, and emotional/affective preference. Data from the EOM-EIS suggest that having a sexual minority identity (lesbian, gay, bisexual, or "other" nonheterosexual identity) and reporting strong same-sex sexual or physical preferences are linked with more advanced global, political, religious, and occupational identity development. Heterosexual-identified participants were more likely to score high on identity foreclosure, moratorium, and diffusion, while sexual-minority-identified individuals scored higher on identity achievement. Individuals with strong same-sex physical/sexual preferences showed a pattern of results similar to those of sexual-minority-identified participants. Themes coded from a free-response question highlighted the finding that sexual-minority-identified participants more often viewed their sexual identity as salient and involving an effortful process. These individuals also stressed the importance of having support or modeling for their sexual identity.  相似文献   
982.
In this research, we investigated how students use temporal and spatial information to estimate the time to fill a tank. In Experiment 1, we evaluated the usefulness of a digital clock to calibrate temporal information and of an overflow tank to calibrate spatial information and investigated how component skills, such as judging volume, judging time, and performing mental calculations, correlate with estimation accuracy. In Experiment 2, we compared the usefulness of static and animated displays in order to test the prediction that static displays would be more useful when the fill rate remained constant but animated displays would be more useful when the fill rate changed. The findings, when combined with verbal reports, provide evidence regarding the use of four strategies that differ in their perceptual and arithmetic demands.  相似文献   
983.
Relapse is a major problem with nicotine addiction. This study investigated the long-term abstinence rate and effectiveness of a five-day residential nicotine treatment program. Questionnaires were mailed to all clients who completed the program between 1991 and 1996. 47% of the questionnaires were returned. Of these, 65% of respondents reported being abstinent from nicotine for an average period of 120 weeks. Of this group, 15% reported at least one relapse before a sustained abstinence. The primary relapse triggers for both the abstinent and nonabstinent groups were coping with "strong emotional feelings". Over 50% of the sample was comorbid for other addictions, depression or anxiety disorders.  相似文献   
984.
Research on Child and Adolescent Psychopathology - The current study examined whether individual differences in depressive and anxious symptoms relate to level of daily self-esteem and instability...  相似文献   
985.
There is a critical inconsistency in the literature on analogical retrieval. On the one hand, a vast set of laboratory studies has found that people often fail to retrieve past experiences that share deep relational commonalities, even when they would be useful for reasoning about a current problem. On the other hand, historical studies and naturalistic research show clear evidence of remindings based on deep relational commonalities. Here, we examine a possible explanation for this inconsistency—namely, that remindings based on relational principles increase as a function of expertise. To test this claim, we devised a simple analogy-generation task that can be administered across a wide range of expertise. We presented common events as the bases from which to generate analogies. Although the events themselves were unrelated to geoscience, we found that when the event was explainable in terms of a causal principle that is prominent in geoscience, expert geoscientists were likely to spontaneously produce analogies from geoscience that relied on the same principle. Further, for these examples, prompts to produce causal analogies increased their frequency among nonscientists and scientists from another domain, but not among expert geoscientists (whose spontaneous causal retrieval levels were already high). In contrast, when the example was best explained by a principle outside of geoscience, all groups required prompting to produce substantial numbers of analogies based on causal principles. Overall, this pattern suggests that the spontaneous use of causal principles is characteristic of experts. We suggest that expert scientists adopt habitual patterns of encoding according to the key relational principles in their domain, and that this contributes to their propensity to spontaneously retrieve relational matches. We discuss implications for the nature of expertise and for science instruction and assessment.  相似文献   
986.
This study measured therapist behaviors in relation to subsequent habituation within exposure tasks, and also tested their direct and indirect relationships (via habituation) with clinical outcomes of exposure therapy. We observed 459 videotaped exposure tasks with 111 participants in three clinical trials for pediatric obsessive-compulsive disorder (POTS trials). Within exposure tasks, therapist behaviors and patient fear were coded continuously. Outcomes were habituation and posttreatment change in symptom severity, global improvement, and treatment response. More therapist behaviors that encourage approach—and less use of accommodation, unrelated talk, and externalizing language—predicted greater subsequent habituation during individual exposure tasks (exposure-level), and also predicted improved patient clinical outcomes via higher “total dose” of habituation across treatment (patient-level indirect effect). For six of seven therapist behaviors analyzed, the relationship with subsequent habituation within exposure differed by patient fear (low, moderate, or high) at the time the behavior was used. Two therapist behaviors had direct effects in the opposite direction expected; more unrelated talk and less intensifying were associated with greater patient symptom reduction. Results shed light on the “black box” of in-session exposure activities and point to specific therapist behaviors that may be important for clinical outcomes. These behaviors might be best understood in the context of changing patient fear during exposure tasks. Future studies should test whether therapist behaviors can be experimentally manipulated to produce improvement in clinical outcomes.  相似文献   
987.
This article compares how individuals from two different Salafi-jihadi groups disengage from high-risk activism and political violence. Drawing on original interviews, we explore the “push” and “pull” factors that influence our respondents' decisions to leave. We identify numerous push-and-pull factors that are consistent with previous research, including disagreements with group leaders over strategy and practices and educational and employment opportunities. We also contribute to existing research by including “persistent activists” in our sample who did not disengage. Surprisingly, these respondents remained in their groups despite experiencing some of the same push-and-pull factors as those who left. Including this variation allows us to separate necessary but insufficient conditions of disengagement from factors that exert a more profound impact. We highlight the influence of one key factor—and its absence—in our discussion: alternative social networks with supportive outsiders for those who left and the lack of such meaningful relationships for those who remained. We conclude by discussing the implications of our research for countering violent extremism.  相似文献   
988.
Struggle with ultimate meaning reflects concerns about whether one’s life has a deeper meaning or purpose. We examined whether this construct could be distinguished from presence of meaning in life and search for meaning. In two US samples – a web-based sample (N = 1047) and an undergraduate sample (N = 3978) – confirmatory factor analyses showed that struggle with ultimate meaning loaded on a factor that was distinct from but related to presence (negatively) and search (positively). Moderated regression analyses showed that people with low levels of presence combined with high levels of search for meaning were particularly likely to struggle with ultimate meaning. Additionally, when compared to presence and search, struggle with ultimate meaning related more strongly to depressive symptoms than presence or search. These results suggest that struggle with ultimate meaning represents a distinct component of how people grapple with meaning that has implications for mental health.  相似文献   
989.
990.
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