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   767篇
  免费   57篇
  国内免费   1篇
  2021年   3篇
  2020年   12篇
  2019年   8篇
  2018年   16篇
  2017年   24篇
  2016年   34篇
  2015年   9篇
  2014年   20篇
  2013年   83篇
  2012年   41篇
  2011年   45篇
  2010年   22篇
  2009年   38篇
  2008年   42篇
  2007年   39篇
  2006年   26篇
  2005年   32篇
  2004年   34篇
  2003年   35篇
  2002年   24篇
  2001年   15篇
  2000年   11篇
  1999年   10篇
  1998年   13篇
  1997年   9篇
  1996年   5篇
  1995年   5篇
  1994年   10篇
  1993年   18篇
  1992年   9篇
  1991年   7篇
  1990年   5篇
  1989年   3篇
  1988年   7篇
  1987年   4篇
  1986年   5篇
  1985年   8篇
  1984年   7篇
  1983年   8篇
  1982年   15篇
  1981年   9篇
  1980年   3篇
  1979年   7篇
  1978年   10篇
  1977年   3篇
  1976年   4篇
  1975年   5篇
  1974年   7篇
  1973年   3篇
  1972年   4篇
排序方式: 共有825条查询结果,搜索用时 0 毫秒
11.
12.
13.
Employed qualitative methods to examine the role of the family in the academic success of very high-achieving African American males. Findings revealed a complex tapestry of family processes and contexts involved in each youth's journey to outstanding academic achievement. Specifically, the combined importance of parental-determined academic engagement, strict discipline, nurturance, and community connectedness appeared to counteract potentially negative contextual influences of neighborhood, peers, schools, and society. The qualitative findings tell a multifaceted, rich, and compelling story of the pathways to academic success for Black males, and highlight the need for culture-specific and ecologically based conceptualization, research, and intervention approaches.  相似文献   
14.
Previous studies have shown that the Common Beliefs Survey III (CBS III) is an irrational beliefs inventory with satisfactory psychometric properties. We extended research on the CBS by examining this 54-item inventory for redundant material, and substantially abbreviated it without compormising its reliability or validity. This article describes the development of the new, 19-item short form (CBS19), convenient for clinical use, that preserves the psychometric properties of the original.  相似文献   
15.
The principle focus of this paper is on interpretation of interactions that are obtained when response probability is used as a dependent variable. It is argued that results obtained with probability [or any dependent variable) are only interesting insofar as they reflect something about a corresponding theoretical component. It follows that the functional mapping of response probability [which is measured) onto the state of a theoretical component (which is inferred) must be somehow specified if conclusions are to be meaningful. Depending on the nature of such a mapping, various types of results, particularly results involving interactions, may or may not be interpretable.  相似文献   
16.
Two experiments investigated the processes by which compass directions are comprehended. In both experiments, the task was as follows. A compass direction (e.g., 210 deg) was visually presented. The subject drew a representation of the direction and then pressed a key. Reaction time from onset of the stimulus to the keypress was measured. The results suggested a model of direction comprehension involving two steps: first, computing the nearest cardinal direction to the target direction, and then “rotating” from the cardinal to the target direction. Rotation could be performed equally well clockwise or counterclockwise. Additionally, north-south. tended to be comprehended faster than east-west, confirming past results that have shown an advantage of up-down over left-right in discrimination tasks.  相似文献   
17.
This paper describes a software system called PLE that is designed to turn a Data General Corporation computer system into a sophisticated infinite-channel tachistoscope. We describe hardware and software characteristics of the PLE system and evaluate its performance in comparison to a typical tachistoscope. Additionally, we describe two example experiments that have been implemented in the PLE system.  相似文献   
18.
Four groups of pigeons were trained on a free operant successive discrimination between line-stimuli differing in orientation. The groups differed according to their previous treatment. Two groups had received true discrimination (TD) training with stimuli differing in colour and two groups had received pseudo-discrimination (PD) training. For one pair of groups the line-stimulus that was to become the positive stimulus in the transfer stage of the experiment was superimposed on both colours and in these the subjects given PD training learned the orientation discrimination more readily than those given TD training. In the other pair of groups TD animals learned more readily than PD. These results require us to modify current theories of attentional factors in transfer.  相似文献   
19.
College students high and low in test anxiety attributed their performance on each of four examinations in a course to ability, test difficulty, preparation, and luck. Individuals high and low in test anxiety typically evidence systematic predispositions to account for their achievement-related behavior in different terms. The present research substantially replicated these earlier (laboratory and Intellectual Achievement Responsibility Scale) findings in an actual achievement setting. In addition, however, the present findings differed from the earlier evidence in some important respects. Specifically, (a) high test-anxiety students' attributions for failure were far less self-deprecating than in the laboratory evidence, and (b) high test-anxiety students' attributions (for both success and failure) became more personally flattering, or comforting, as the semester progressed. Results were discussed in terms of the laboratory — field distinction and of the influence of a temporal, or time of measurement, factor, hitherto ignored in the causal attribution literature.This research was facilitated by a grant from the Research Council of the Graduate School, University of Missouri-Columbia, and the National Institute of Mental Health (1 R08 31910), both to the first author.  相似文献   
20.
This study investigates the expression of attitudes by individuals within the context of groups. A link is made between two theoretical areas: that of intergroup relations and that of the effects of group interaction on the expression of opinions. It is argued that individuals in groups adopt more polarized attitudes to achieve a more positively distinct group identity, and to afford themselves identification with that group. Subjects individually expressed their opinion on an issue, while the salience of group membership was varied by evoking the identity of an alternative group which held opposed opinions on the issue. When their own group identity was more salient, subjects tended to express their opinions in a more polarized manner, and in a manner more in keeping with the presumed view of their group. Also, they attributed to the other group attitudes that were more polarized and more in keeping with their presumed view of the issue.  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