全文获取类型
收费全文 | 28398篇 |
免费 | 1181篇 |
国内免费 | 10篇 |
出版年
2020年 | 340篇 |
2019年 | 469篇 |
2018年 | 595篇 |
2017年 | 532篇 |
2016年 | 645篇 |
2015年 | 416篇 |
2014年 | 587篇 |
2013年 | 2612篇 |
2012年 | 996篇 |
2011年 | 1039篇 |
2010年 | 700篇 |
2009年 | 728篇 |
2008年 | 995篇 |
2007年 | 1004篇 |
2006年 | 919篇 |
2005年 | 775篇 |
2004年 | 841篇 |
2003年 | 763篇 |
2002年 | 741篇 |
2001年 | 652篇 |
2000年 | 717篇 |
1999年 | 540篇 |
1998年 | 409篇 |
1997年 | 322篇 |
1996年 | 283篇 |
1995年 | 318篇 |
1994年 | 301篇 |
1993年 | 275篇 |
1992年 | 413篇 |
1991年 | 413篇 |
1990年 | 413篇 |
1989年 | 386篇 |
1988年 | 389篇 |
1987年 | 352篇 |
1986年 | 339篇 |
1985年 | 366篇 |
1984年 | 318篇 |
1983年 | 304篇 |
1982年 | 274篇 |
1981年 | 260篇 |
1980年 | 264篇 |
1979年 | 358篇 |
1978年 | 324篇 |
1975年 | 285篇 |
1974年 | 320篇 |
1973年 | 326篇 |
1972年 | 269篇 |
1971年 | 251篇 |
1968年 | 268篇 |
1967年 | 257篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
191.
192.
Judith M. Green 《希帕蒂亚:女权主义哲学杂志》1992,7(1):70-99
Feminist critics have charged that Aristotle's mistaken and harmful remarks about women and slaves show inconsistency or bias-driven arbitrariness. However, this analysis shows that these remarks function within a consistent and coherent theoretical corpus. Thus, both Aristotle's hierarchical and dualistic first principles and the methodology on which his entire corpus is based must be unreliable. Moreover, consistency and coherence must be insufficient warrants of theoretical insightfulness. Aristotle's mistakes suggest caveats for feminist philosophical reconstruction. 相似文献
193.
The current study meta-analyzes 59 male-female pairs of validity coefficients obtained during revalidation of the General Aptitude Test Battery (GATB) for evidence of differential validity by sex. Results suggest that general cognitive ability may be slightly more predictive of rated job performance for women than for men in our sample of studies. Moderator analyses examined the effects of occupational sex-dominance and cognitive complexity. Results of these analyses indicate that, in single sex-dominated occupations, tests of general cognitive ability and perceptual ability are more valid for members of the dominant sex, and these differences are more apparent at low-complexity levels. Explanations for the findings are offered in terms of properties of the ratings criterion.An earlier version of this paper was given at the 2nd annual convention of the Society for Industrial and Organizational Psychology, Inc., Atlanta, GA. The authors thank Dave Synk for providing the occupation codes for each study. 相似文献
194.
Michael S. Wogalter D. Bradley Marwitz David C. Leonard 《Applied cognitive psychology》1992,6(5):443-453
The present research examined whether line-ups based on target (‘suspect’) face similarity are biased or suggestive. Four experiments are described in which subjects constructed photographic line-ups by selecting foils similar in appearance to a target. Later, another group of subjects who had not seen the faces before (mock witnesses) were asked to pick out the targets from the line-ups. All four experiments showed that mock witnesses selected the target significantly more often than expected by chance, thereby demonstrating suggestiveness. Three alternative line-up construction methods were also evaluated. In these methods, foil selection was based not only on target similarity but also on similarity with one or more of the other line-up faces. Results showed that alternative line-up targets were not selected significantly more often than chance, suggesting that bias was reduced. An overall analysis showed that the alternative line-ups were significantly less suggestive than target-based line-ups. The results indicate that foil selection procedures that incorporate foil-to-foil similarity produce fairer line-ups than those exclusively based on target similarity. 相似文献
195.
Sixty-five subjects reported amount of social support given and received, and satisfaction with relationships where support exchanges took place. Negative affect from relationships, psychological symptoms, and happiness were also measured. Multiple regression analyses showed that receiving and giving support was related to some negative feelings toward the relationships concerned. Receiving support was also related to inflated anxiety symptoms. Effects of receiving support on guilt and dependent feelings were moderated by relationship satisfaction. Effects of giving support on anxiety were also moderated by relationship satisfaction. Extraversion and satisfaction with relationships predicted happiness. There were some individual differences in support exchanges. Extraverts gave more support. Women received more support whereas conscientious people received less. 相似文献
196.
197.
198.
Parent-tutoring procedures: Experimental analysis and validation of generalization in oral reading across passages,settings, and time 总被引:1,自引:0,他引:1
Steven F. Duvall Ph.D. Joseph C. Delquadri Ph.D. Marlene Elliott Ph.D. R. Vance Hall Ph.D. 《Journal of Behavioral Education》1992,2(3):281-303
A study that involved parents as reading tutors was carried out at home during the summer with four elementary children, three with learning disabilities. One purpose was to determine the effects of tutoring in the basal reader on reading rates at home. Another purpose was to determine potential generalization effects as a result of parent tutoring on different academic tasks at home and, later at school, on different and similar tasks. A combination multiple-baseline and reversal design tested for replication and generalization effects. Increases in correct rates were noted for the targeted variables across conditions. The results indicated that parents tutoring with school basal texts during the summer produced marked increases in reading rates that generalized at home to different academic tasks and at school to different and similar tasks. This suggests that parents, when using specific tutoring procedures, can increase their children's academic skills. 相似文献
199.
Kenneth F. Schaffner 《Theoretical medicine and bioethics》1992,13(2):191-216
This two-part article examines the competition between the clonal selection theory and the instructive theory of the immune response from 1957–1967. In Part I the concept of a temporally extended theory is introduced, which requires attention to the hitherto largely ignored issue of theory individuation. Factors which influence the acceptability of such an extended theory at different temporal points are also embedded in a Bayesian framework, which is shown to provide a rational account of belief change in science. In Part II these factors, as elaborated in the Bayesian framework, are applied to the case of the success of the clonal selection theory and the failure of the instructive theory. 相似文献
200.
Rolf Loeber Ph.D. Stephanie M. Green M.A. Benjamin B. Lahey Ph.D. Mary Anne G. Christ M.A. Paul J. Frick Ph.D. 《Journal of child and family studies》1992,1(1):21-41
Retrospective and prospective reports of the onset of disruptive child behaviors were analyzed in a sample of clinic-referred boys. The younger boys (ages 7–9 years), compared with the older boys (ages 10–12 years), showed the highest level of disruptive behavior and, judging from mothers' reports, had the fastest progression of onsets from less serious to more serious problem behaviors. Despite some overlap, developmental sequences in problem behavior within the domains of hyperactivity/inattention, oppositional behavior, and conduct problems were similar across the two age groups. This was also the case for developmental sequences of overt or confrontive problem behaviors and covert or concealing conduct problems. Sequences of the onset of oppositional behavior and conduct problems were validated through prospective data, based on the information from mothers, teachers, and boys themselves. The implications of the findings are discussed for the formulation of developmental pathways of behavior and the analysis of causal factors. 相似文献