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   2483篇
  免费   130篇
  国内免费   1篇
  2022年   16篇
  2021年   24篇
  2020年   41篇
  2019年   63篇
  2018年   88篇
  2017年   88篇
  2016年   93篇
  2015年   46篇
  2014年   71篇
  2013年   244篇
  2012年   119篇
  2011年   122篇
  2010年   67篇
  2009年   81篇
  2008年   99篇
  2007年   96篇
  2006年   84篇
  2005年   74篇
  2004年   64篇
  2003年   78篇
  2002年   85篇
  2001年   47篇
  2000年   45篇
  1999年   44篇
  1998年   41篇
  1997年   34篇
  1996年   38篇
  1995年   33篇
  1994年   39篇
  1993年   19篇
  1992年   23篇
  1991年   29篇
  1990年   25篇
  1989年   23篇
  1988年   29篇
  1987年   21篇
  1986年   30篇
  1985年   22篇
  1984年   19篇
  1983年   24篇
  1982年   19篇
  1981年   22篇
  1980年   21篇
  1979年   19篇
  1978年   24篇
  1977年   28篇
  1976年   20篇
  1975年   17篇
  1974年   21篇
  1973年   17篇
排序方式: 共有2614条查询结果,搜索用时 15 毫秒
941.
This paper systematizes the word search potential of DreamBank.net (Domhoff and Schneider, 2008a, Domhoff and Schneider, 2008b) by formulating and testing a set of word strings that can be used as default analytic categories in future investigations. The word strings are applied to the 981 dream reports of college students gathered by Hall and Van de Castle (1966) and the 136 dream reports of an 80-year old male gathered by Bulkeley (2008a). The results show a basic compatibility with the frequencies identified by Hall and Van de Castle’s labor-intensive method of content analysis employing teams of human coders. These findings support the expanded use of word search technologies for the scientific study of dream content and its relation to forms of waking consciousness.  相似文献   
942.
943.
Three studies investigated the psychometric properties of the complex postformal thought (PFT) questionnaire (Sinnott, unpublished scale, 1998; Sinnott and Johnson 1997), which is a measure of adult cognitive development. The scale was found to be moderately reliable (α = .63). To assess construct validity, a comparison of participants’ performance on the PFT scale to their performance on the Need for Cognition scale was conducted, which indicated the PFT scale is valid measure of complex thought. Factor analysis reduced the scale to three factors, which correspond to important components of PFT: Multiple Elements, Subjective Choice, and Underlying Complexities. Implications for understanding the nature of adult cognitive development and the usefulness of this new measure for research in this area are discussed.  相似文献   
944.
Two experiments explored the role of environmental cues in maintaining spatial orientation (sense of selflocation and direction) during locomotion. Of particular interest was the importance of geometric cues (provided by environmental surfaces) and featural cues (nongeometric properties provided by striped walls) in maintaining spatial orientation. Participants performed a spatial updating task within virtual environments containing geometric or featural cues that were ambiguous or unambiguous indicators of self-location and direction. Cue type (geometric or featural) did not affect performance, but the number and ambiguity of environmental cues did. Gender differences, interpreted as a proxy for individual differences in spatial ability and/or experience, highlight the interaction between cue quantity and ambiguity. When environmental cues were ambiguous, men stayed oriented with either one or two cues, whereas women stayed oriented only with two. When environmental cues were unambiguous, women stayed oriented with one cue.  相似文献   
945.
Many clients who undergo methadone maintenance (MM) treatment for heroin and other opiate dependence prefer abstinence from methadone. Attempts at methadone detoxification are often unsuccessful, however, due to distressing physical as well as psychological symptoms. Outcomes from an MM client who voluntarily participated in an Acceptance and Commitment Therapy (ACT)–based methadone detoxification program are presented. The program consisted of a 1-month stabilization and 5-month gradual methadone dose reduction period, combined with weekly individual ACT sessions. Urine samples were collected twice weekly to assess for use of illicit drugs. The participant successfully completed the program and had favorable drug use outcomes during the course of treatment, and at the 1-month and 1-year follow-ups. Innovative behavior therapies, such as ACT, that focus on acceptance of the inevitable distress associated with opiate withdrawal may improve methadone detoxification outcomes.  相似文献   
946.
Research investigated classroom environment antecedent variables and student affective outcomes in Australian high schools. The Technology-Rich Outcomes-Focused Learning Environment Inventory (TROFLEI) was used to assess 10 classroom environment dimensions: student cohesiveness, teacher support, involvement, investigation, task orientation, cooperation, equity, differentiation, computer usage and young adult ethos. A sample of 4,146 high school students from Western Australia and Tasmania responded to the TROFLEI and three student outcome measures: attitude to the subject, attitude to computer use and academic efficacy. Confirmatory factor analysis using LISREL supported the 10 scale a priori structure of the instrument. Structural equation modeling using LISREL was used to test a postulated model involving antecedent variables, classroom environment and outcomes. The modeling indicated that: improving classroom environment has the potential to improve student outcomes, antecedents did not have any significant direct effect on outcomes, and academic efficacy mediated the effect of several classroom environment dimensions on attitude to subject and attitude to computer use.
Jeffrey P. DormanEmail:
  相似文献   
947.
A real-world open-field search task was implemented with humans as an analogue of Blaisdell and Cook’s (Anim Cogn 8:7–16, 2005) pigeon foraging task and Sturz, Bodily, and Katz’s (Anim Cogn 9:207–217, 2006) human virtual foraging task to 1) determine whether humans were capable of integrating independently learned spatial maps and 2) make explicit comparisons of mechanisms used by humans to navigate real and virtual environments. Participants searched for a hidden goal located in one of 16 bins arranged in a 4 × 4 grid. In Phase 1, the goal was hidden between two landmarks (blue T and red L). In Phase 2, the goal was hidden to the left and in front of a single landmark (blue T). Following training, goal-absent trials were conducted in which the red L from Phase 1 was presented alone. Bin choices during goal-absent trials assessed participants’ strategies: association (from Phase 1), generalization (from Phase 2), or integration (combination of Phase 1 and 2). Results were inconsistent with those obtained with pigeons but were consistent with those obtained with humans in a virtual environment. Specifically, during testing, participants did not integrate independently learned spatial maps but used a generalization strategy followed by a shift in search behavior away from the test landmark. These results were confirmed by a control condition in which a novel landmark was presented during testing. Results are consistent with the bulk of recent findings suggesting the use of alternative navigational strategies to cognitive mapping. Results also add to a growing body of literature suggesting that virtual environment approaches to the study of spatial learning and memory have external validity and that spatial mechanisms used by human participants in navigating virtual environments are similar to those used in navigating real-world environments.  相似文献   
948.
A difficult result to interpret in Computerized Adaptive Tests (CATs) occurs when an ability estimate initially drops and then ascends continuously until the test ends, suggesting that the true ability may be higher than implied by the final estimate. We explain why this asymmetry occurs and show that early mistakes by high ability students can lead to considerable underestimation, even in tests with 45 items. The opposite response pattern, where low ability students start with lucky guesses, leads to much less bias. We show that using Barton and Lord's (1981) four-parameter model and a less informative prior can lower bias and RMSE for high ability students with a poor start, as the CAT algorithm ascends more quickly after initial underperformance. We also show that the 4PM slightly outperforms a CAT in which less discriminating items are initially used. The practical implications and relevance for psychological measurement more generally are discussed.  相似文献   
949.
Rates of cosmetic surgery procedures have increased dramatically over the past several decades, but only recently have studies of cosmetic surgery attitudes among the general population begun to appear in the literature. The vast majority of those who undergo cosmetic surgery are women. We examined cosmetic surgery attitudes among 218 undergraduate women, most of whom were White. Specifically, we examined their acceptance of cosmetic surgery and expressed desire to undergo cosmetic surgery procedures, and several potential predictors: appearance attitudes of mothers, fathers, and friends; awareness and internalization of sociocultural appearance messages; and materialism. Multiple regression analyses indicated that materialism and internalization of sociocultural messages consistently emerged as significant predictors of acceptance of cosmetic surgery and desire for cosmetic surgery procedures. Paternal attitudes positively predicted acceptance of cosmetic surgery for social reasons and desire for cosmetic surgery; nonmaterialism negatively predicted considering cosmetic surgery and the desire for cosmetic surgery procedures.  相似文献   
950.
Literature suggests that many young women hold negative perceptions of their sexual bodies and facial features. This may be related to deficits in mindfulness, manifested by rigid and automatic thoughts, feelings, and behavior about one's sexual body. The present study examined the relationships between the five factors of mindfulness measured by the Five Factor Mindfulness Questionnaire (FFMQ) and sexual body esteem, measured by the Sexual Attractiveness subscale of the Body Esteem Scale (BES) in 79 college women. A multiple regression was performed to examine the relationship between sexual body esteem and the factors of mindfulness. The Observing and Describing subscales were significantly and positively predictive of sexual body esteem while Non-reactivity to Inner Experience was significantly and negatively predictive of sexual body esteem. This relationship may have implications for future research and clinical practice.  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