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   3365篇
  免费   183篇
  2023年   20篇
  2021年   40篇
  2020年   73篇
  2019年   87篇
  2018年   98篇
  2017年   96篇
  2016年   117篇
  2015年   95篇
  2014年   95篇
  2013年   362篇
  2012年   169篇
  2011年   155篇
  2010年   94篇
  2009年   87篇
  2008年   149篇
  2007年   158篇
  2006年   131篇
  2005年   115篇
  2004年   129篇
  2003年   116篇
  2002年   94篇
  2001年   59篇
  2000年   54篇
  1999年   51篇
  1998年   40篇
  1997年   43篇
  1996年   38篇
  1995年   38篇
  1994年   44篇
  1993年   35篇
  1992年   39篇
  1991年   34篇
  1990年   41篇
  1989年   39篇
  1988年   32篇
  1987年   23篇
  1986年   33篇
  1985年   32篇
  1984年   30篇
  1983年   29篇
  1982年   44篇
  1981年   36篇
  1980年   23篇
  1979年   29篇
  1978年   20篇
  1977年   24篇
  1976年   21篇
  1975年   20篇
  1974年   20篇
  1968年   17篇
排序方式: 共有3548条查询结果,搜索用时 15 毫秒
41.
42.
43.
44.
This study tests the hypothesis that children's deficiency in encoding itemspecific and relational information in episodic events contributes to age differences in recall and recognition. In two experiments, grade school children and college adults were presented with word triplets varying in categorical relatedness. The processing of the item-specific and relational information in the triplets was independently manipulated. Experiment 1 assessed cued recall, and Experiment 2 assessed recognition of both the central target and incidental contextual members of each triplet. The results showed that the processing manipulations had independent and different effects on recall and recognition, on memory for the members of the different kinds of triplets, on the use of the retrieval cues, and on memory for target and incidental words. Developmental differences were found in both recall and recognition, and of both target and incidental words, that varied with triplet type and the processing manipulations and that were attributable to differences in the encoding of item-specific and relational information in the triplets. The discussion contrasts alternative accounts of children's encoding deficiency, and suggests that the distinction between automatic, age-invariant, and strategic age-sensitive encoding processes needs to be redrawn.  相似文献   
45.
A self-attention approach to the effect of the group on the individual is applied to the phenomenon of participation in religious groups. Previous work indicates that group members become more self-attentive, and thus more concerned with matching to standards of appropriate behavior, as the relative size of their subgroup decreases. This suggests that, in the context of religious groups, members of a congregation will be more self-attentive, and thus more likely to participate in the religious group, when there are fewer congregation members relative to the number of ministers. The results of analysis of ten archival records of participation in religious groups support this perspective. The importance of self-attention processes in religious group settings is discussed.  相似文献   
46.
Summary The feature-integration model of visual information processing (Treisman & Gelade, 1980) predicts perceptual errors based on the incorrect grouping of stimulus features in multi-element displays. Experiment 1 examined the frequency of such errors with a tachistoscopic bar probe task using letters and novel patterns with a production response. A substantial proportion of the errors did involve figures that were not present in the display but contained combinations of features which had been present. Such errors were especially prominent with novel patterns. The results with letters suggested that such responses were due to guessing, not feature migration, and this was confirmed by Experiment 2. In the second study, responses were collected for single character displays but were scored as if they had been responses to the multielement displays in Experiment 1. The results showed the same high proportion of illusory conjunction errors as the previous results and it was concluded that both results were due to guessing. Spatial confusions in the bar probe task with letters appear to involve whole characters, not character features.This research was supported by grant A-9581 from the National Science and Engineering Council of Canada to the senior author. This research was reported as a paper to the annual meeting of the Canadian Psychological Association, Toronto, 1981. Ian Morrison is now a post-doctoral fellow at the Department of Psychology, Carnegie-Mellon University.  相似文献   
47.
We investigated the role of implicit and explicit associations between harm and COVID-19 vaccines using a large sample (N = 4668) of online volunteers. The participants completed a brief implicit association test and explicit measures to evaluate the extent to which they associated COVID-19 vaccines with concepts of harmfulness or helpfulness. We examined the relationship between these harmfulness/helpfulness COVID-19 vaccine associations and vaccination status, intentions, beliefs, and behavior. We found that stronger implicit and explicit associations that COVID-19 vaccines are helpful relate to vaccination status and beliefs about the COVID-19 vaccine. That is, stronger pro-helpful COVID-19 vaccine associations, both implicitly and explicitly, related to greater intentions to be vaccinated, more positive beliefs about the vaccine, and greater vaccine uptake.  相似文献   
48.
Choice behavior and the accessibility of the reinforcer   总被引:11,自引:11,他引:0       下载免费PDF全文
In Experiment 1, matching of relative response rates to relative rates of reinforcement was obtained in concurrent variable-interval schedules when the absolute values of the two concurrent variable-interval schedules varied from 6 sec and 12 sec to 600 sec and 1200 sec. Increases in the duration of the changeover delay, however, produced decreases in the relative response rates and, consequently, some deviation from matching. In Experiment 2, matching of relative response rates to the relative duration of the reinforcer failed to occur when the equal variable-interval schedules arranging access to the two different reinforcer durations (1.5 and 6 sec) were varied in size from concurrent variable-interval 10-sec schedules to concurrent variable-interval 600-sec schedules.  相似文献   
49.
Services of rehabilitation agencies and facilities tend to be structured to the needs of the larger American culture. It is important, however, to reconsider our social service programs in view of the needs of different cultural groups when providing services that will aid these individuals to move across cultural boundaries. An attempt is made in this paper to develop a model of the individual who undergoes such cultural transition. Such a model should help define problems in service programs, assess the value of current service activities, and identify areas for developing new services that will aid the overall process of cultural transition. A model of behavior development is outlined, followed by a formulation of a model of the individual in cultural change.  相似文献   
50.
The relationship between the occupational preferences of 147 superior students and their fathers' occupations was traced over the 4-year period that the students attended high schools in Wisconsin. Analysis of the data indicated that both male and female superior students tended to state vocational preferences at the professional level early in high school and to maintain this preference throughout. Their occupational preferences were generally at a higher level than those of their fathers. There was no trend away from general preferences for work at a professional level toward naming of specific occupations within that level. The results suggest that theories of vocational development that imply that stages are passed through during later adolescent periods do not apply to the superior student population of this study.  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