全文获取类型
收费全文 | 21070篇 |
免费 | 981篇 |
国内免费 | 9篇 |
出版年
2020年 | 289篇 |
2019年 | 336篇 |
2018年 | 470篇 |
2017年 | 463篇 |
2016年 | 469篇 |
2015年 | 385篇 |
2014年 | 440篇 |
2013年 | 1683篇 |
2012年 | 776篇 |
2011年 | 752篇 |
2010年 | 506篇 |
2009年 | 481篇 |
2008年 | 655篇 |
2007年 | 679篇 |
2006年 | 577篇 |
2005年 | 550篇 |
2004年 | 483篇 |
2003年 | 448篇 |
2002年 | 458篇 |
2001年 | 758篇 |
2000年 | 728篇 |
1999年 | 512篇 |
1998年 | 247篇 |
1997年 | 225篇 |
1996年 | 230篇 |
1995年 | 183篇 |
1994年 | 196篇 |
1992年 | 410篇 |
1991年 | 389篇 |
1990年 | 405篇 |
1989年 | 328篇 |
1988年 | 314篇 |
1987年 | 313篇 |
1986年 | 282篇 |
1985年 | 303篇 |
1984年 | 280篇 |
1983年 | 232篇 |
1982年 | 204篇 |
1979年 | 261篇 |
1978年 | 214篇 |
1977年 | 196篇 |
1975年 | 226篇 |
1974年 | 256篇 |
1973年 | 262篇 |
1972年 | 202篇 |
1971年 | 203篇 |
1970年 | 173篇 |
1969年 | 184篇 |
1968年 | 218篇 |
1967年 | 207篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
811.
Criticism is leveled at attempts to develop alternative forms of the Matching Familiar Figures test when the literature suggests that what is required is a more reliable test, not simply an alternate version. 相似文献
812.
T. Ernest Newland 《Journal of School Psychology》1981,19(1):4-20
Analyses of certain characteristics of the membership of the Division of School Psychology and some of its efforts are presented. Evidence is presented which suggests unequivocally that school psychologists, whom the schools clearly need, must be soundly grounded in relevant psychological testing theory, must be fully sensitive to the social characteristics and needs of each child in whose interests they work, and must be fully conversant with the relevance of their psychological perceptions to the educational functioning of those children. 相似文献
813.
814.
Kendrick DF Rilling M Stonebraker TB 《Journal of the experimental analysis of behavior》1981,36(2):241-251
Pigeons were trained in delayed matching-to-sample with two postsample stimuli. A postsample R-cue signaled that a matching choice phase would follow. A postsample F-cue signaled that a matching choice phase would not follow. Previous research found reduced matching accuracy on F-cued probe trials when comparison stimuli were presented in the choice phase. The present four experiments systematically varied the events following an F-cue to determine the conditions under which the F-cue reduces delayed-matching accuracy. When F-cues and R-cues controlled different behavior, matching on probe trials was poor. When both cues controlled the same behavior, matching on probe trials was good. This result is best explained by the theory that comparison stimuli retrieve the sample representation, but only in the behavioral context established by the R-cue. The present research supports the view that response-produced stimuli serve a contextual role in animal short-term memory. 相似文献
815.
Two experimental studies were run to test the effects of subordinate impression management on the appraisals and responses of a manager, following an incident of poor performance. Two common impression management tactics, accounts and apologies, were manipulated in each of the studies. Subjects in both studies were experienced nursing supervisors. On the basis of the "discounting effect" reported in the attributional literature it was hypothesized that accounts of external causes for poor performance, i.e., excuses, would lead subjects to (1) attribute less responsibility to the subordinate, (2) be less personal in their responses, and (3) be less punitive in their responses. Apologies, because of their "equity restoration" effects, were expected to influence subjects' disciplinary responses to the poor performance, without necessarily affecting their attributions of responsibility. Experiment 1. which employed written stimulus materials and a repeated-measures design, provided strong support for all hypotheses. Experiment 2. which employed a film stimulus and between-subjects design, provided strong support for the accounts hypotheses but only minimal support for the apology hypotheses. The results highlight the importance of social information cues in the appraisal of performance. 相似文献
816.
Sentence imagery effects in recall are predicted by both perceptual and semantic elaboration models. The former attributes superior recall of high-imagery sentences to the addition of perceptual network components to an existing semantic network; the latter claims that additions of semantic components are involved. In order to identify the responsible components, free associates were generated to otherwise similar high- and low-imagery sentences in a short-term memory task. In accordance with the perceptual elaboration model, associates differed in rated imagery, but not in number. In a second study, the causal role of perceptual elaboration in recall was investigated by using high- and low-imagery sentence associates as recall cues. Differential effects of cue imagery were found for high-imagery sentences, indicating that perceptual codes are in part responsible for superior high-imagery sentence recall. Evidence is presented that perceptual and semantic network components are involved in a processing trade-off, and the adequacy of present network models to explain it is discussed. 相似文献
817.
Stuart T. Klapp 《Memory & cognition》1981,9(4):398-401
Simultaneous articulation did not interfere with hand responses if the responses shared the same time period. Otherwise there was marked interference even after performance had stabilized with practice. These results generalized previous findings for simultaneous left-and right-hand responses (Klapp, 1979) to show that even highly distinctive responses can be generated in parallel only if they have compatible timing. 相似文献
818.
819.
The primary purpose of this study was to examine the effects on one child of observing another child receive direct social reinforcement. In the first part of the study, pairs of same-sex children worked on puzzles for three sessions spaced 2 to 3 days apart. One child was praised on a continuous schedule for performance, whereas the other received no praise. Although children who observed other children being praised increased their performance initially (as predicted by vicarious reinforcement and social comparison hypotheses), their performance decreased over time, reaching levels below their own baseline rates. In the second part of the study, intermittent praise delivered to the observing child was examined as a potential strategy to reverse the unexpected effects obtained in the first part of the study. Intermittent praise was found to be effective in reducing these effects and in producing enhanced performance. Individual data, as well as group data, are presented. Results are discussed in light of theoretical and applied issues related to the use of vicarious reinforcement in applied settings. 相似文献