全文获取类型
收费全文 | 86955篇 |
免费 | 3613篇 |
国内免费 | 33篇 |
专业分类
90601篇 |
出版年
2020年 | 970篇 |
2019年 | 1131篇 |
2018年 | 1587篇 |
2017年 | 1619篇 |
2016年 | 1713篇 |
2015年 | 1258篇 |
2014年 | 1487篇 |
2013年 | 6980篇 |
2012年 | 2811篇 |
2011年 | 2800篇 |
2010年 | 1719篇 |
2009年 | 1700篇 |
2008年 | 2435篇 |
2007年 | 2391篇 |
2006年 | 2144篇 |
2005年 | 1882篇 |
2004年 | 1881篇 |
2003年 | 1768篇 |
2002年 | 1737篇 |
2001年 | 2788篇 |
2000年 | 2630篇 |
1999年 | 1987篇 |
1998年 | 941篇 |
1997年 | 814篇 |
1996年 | 875篇 |
1994年 | 804篇 |
1992年 | 1740篇 |
1991年 | 1624篇 |
1990年 | 1627篇 |
1989年 | 1507篇 |
1988年 | 1477篇 |
1987年 | 1368篇 |
1986年 | 1414篇 |
1985年 | 1529篇 |
1984年 | 1190篇 |
1983年 | 1087篇 |
1979年 | 1298篇 |
1978年 | 900篇 |
1977年 | 803篇 |
1976年 | 813篇 |
1975年 | 1075篇 |
1974年 | 1237篇 |
1973年 | 1285篇 |
1972年 | 1119篇 |
1971年 | 1026篇 |
1970年 | 960篇 |
1969年 | 952篇 |
1968年 | 1239篇 |
1967年 | 1103篇 |
1966年 | 1009篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
971.
A R Davidson S Yantis M Norwood D E Montano 《Journal of personality and social psychology》1985,49(5):1184-1198
The synthesis of two separate lines of inquiry--research on information integration and longitudinal studies of attitudes--prompted the hypothesis that the degree of consistency between attitudes and behavior will increase as a function of the amount of information available about the attitude object. The hypothesis was tested in three separate longitudinal studies, ranging in length from 4 days to 4 months, that investigated the following behaviors: voting for candidates for political office, voting for two social policy election initiatives, and having an influenza vaccination. In support of the hypothesis, in each study, amount of information moderated the consistency between attitudes and behavior; and the significance of this relation remained even after controlling for the effects of a number of other potential moderators, including prior direct behavioral experience with the attitude object and attitude certainty. Consistent with previous research, direct behavioral experience was also a determinant of attitude-behavior consistency, and for the behavior of having an influenza vaccination, this relation was independent of the effect of amount of information. The discussion focuses on the interrelation among moderators of attitude-behavior consistency and on the theoretical implications of the findings. 相似文献
972.
Past research indicates that Type A's and B's differ in their behavioral responses to lack of control. The present study examined perceptual judgments of noncontingency in an attempt to clarify further the role of a control dynamic in Type A-B differences. Type A's and B's assumed the role of either an actor or an observer on a standard contingency judgment task. Consistent with previous research, both Type A's and B's exhibited an illusion of control when in the role of actor. Only Type B's exhibited an illusion of control when observing another person perform the task. Additional analyses indicated that the absence of an illusion of control by Type A observers reflected accuracy rather than a motivational distortion. Mood was also found to mediate control judgments, but only for actors. The plausibility of a memory-based interpretation for the mood effects is discussed. 相似文献
973.
974.
975.
976.
Correspondence analysis used complementary to loglinear analysis 总被引:1,自引:0,他引:1
Loglinear analysis and correspondence analysis provide us with two different methods for the decomposition of contingency tables. In this paper we will show that there are cases in which these two techniques can be used complementary to each other. More specifically, we will show that often correspondence analysis can be viewed as providing a decomposition of the difference between two matrices, each following a specific loglinear model. Therefore, in these cases the correspondence analysis solution can be interpreted in terms of the difference between these loglinear models. A generalization of correspondence analysis, recently proposed by Escofier, will also be discussed. With this decomposition, which includes classical correspondence analysis as a special case, it is possible to use correspondence analysis complementary to loglinear analysis in more instances than those described for classical correspondence analysis. In this context correspondence analysis is used for the decomposition of the residuals of specific restricted loglinear models. 相似文献
977.
978.
Fear of death and the concept of extended self 总被引:1,自引:0,他引:1
979.
Symmetry and transitivity of conditional relations in monkeys (Cebus apella) and pigeons (Columba livia) 总被引:10,自引:10,他引:0 下载免费PDF全文
D'Amato MR Salmon DP Loukas E Tomie A 《Journal of the experimental analysis of behavior》1985,44(1):35-47
In Experiment 1 six monkeys were tested with discriminative relations that were backward relative to their training in a 0-second conditional (“symbolic”) matching procedure. Although there was some indication of backward associations, the evidence was generally weak, and statistical evaluations did not reach conventional significance levels. Unlike children, who show backward associations to the point of symmetry, monkeys and pigeons display at best only weak and transient backward associations. In Experiment 2 associative transitivity was assessed across two sets of conditional matching tasks. All four monkeys tested demonstrated strong transitivity. In contrast, in Experiment 3 there was no evidence of transitivity in three pigeons tested under conditions closely comparable to those of Experiment 2. These results may identify some key features of interspecies differences and contribute to analyses of serial learning in animals. 相似文献
980.
24 women over 60 yr. and 24 younger women rated the severity of life stress events drawn from a pool of events occurring to elderly people. There were no over-all age differences, but rather strong agreement on which events were most threatening. There was some evidence, however, that the old rated 'severe' death events as less threatening than younger women. 相似文献