全文获取类型
收费全文 | 14941篇 |
免费 | 1973篇 |
国内免费 | 1335篇 |
出版年
2024年 | 46篇 |
2023年 | 429篇 |
2022年 | 334篇 |
2021年 | 479篇 |
2020年 | 883篇 |
2019年 | 952篇 |
2018年 | 857篇 |
2017年 | 939篇 |
2016年 | 828篇 |
2015年 | 557篇 |
2014年 | 703篇 |
2013年 | 2217篇 |
2012年 | 516篇 |
2011年 | 626篇 |
2010年 | 419篇 |
2009年 | 582篇 |
2008年 | 645篇 |
2007年 | 671篇 |
2006年 | 684篇 |
2005年 | 640篇 |
2004年 | 536篇 |
2003年 | 427篇 |
2002年 | 393篇 |
2001年 | 252篇 |
2000年 | 223篇 |
1999年 | 240篇 |
1998年 | 191篇 |
1997年 | 145篇 |
1996年 | 112篇 |
1995年 | 125篇 |
1994年 | 104篇 |
1993年 | 85篇 |
1992年 | 82篇 |
1991年 | 48篇 |
1990年 | 39篇 |
1989年 | 42篇 |
1988年 | 31篇 |
1987年 | 28篇 |
1985年 | 162篇 |
1984年 | 146篇 |
1983年 | 114篇 |
1982年 | 105篇 |
1981年 | 81篇 |
1980年 | 86篇 |
1979年 | 83篇 |
1978年 | 113篇 |
1977年 | 73篇 |
1976年 | 58篇 |
1975年 | 40篇 |
1973年 | 28篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
In each of two experiments, 2 pigeons received discrimination training in which food reinforcement for key pecking was conditional upon both spatial and temporal cues. In Experiment 1, food was available for periods of 30 s at each of three locations (pecking keys) during trials that lasted 90 s. In Experiment 2, food was available for periods of 15 min at each of four locations (pecking keys) during a 60-min trial. In both experiments, pigeons' key pecking was jointly controlled by the spatial and temporal cues. These data, and other recent experiments, suggest that animals learn relationships between temporal and spatial cues that predict stable patterns of food availability. 相似文献
22.
23.
ROLAND GUSTAFSON 《Scandinavian journal of psychology》1992,33(1):80-85
Thirty-six women participated in an experiment exploring whether alcohol intoxication facilitates yielding to social persuasive information. Subjects were randomly assigned to either an Alcohol, a Placebo, or a Control Group. The alcohol dose was 1.0 ml of 100% alcohol/kg body weight. Subjects first estimated the length of a line and were then given faked feedback from either a male or a female peer reference group. This procedure was repeated 60 times. Analyses indicated that the Placebo group yielded more often than the Alcohol group irrespective of type of feedback. A measure of locus of control indicated no significant mean differences as a function of alcohol group but correlations between externality and yielding were strong for placebo subjects, that is, externally oriented placebo subjects yielded more than internally oriented placebo subjects. This was discussed in terms of feelings uneasiness caused by the discrepancy between feelings of intoxication and information about drink content. 相似文献
24.
25.
谈谈个人对智力落后儿童早期干预的看法 总被引:4,自引:0,他引:4
本文作者根据从事智力落后儿童的早期干预教学研究的实践经验对当今在我国开展早期干预的必要性以及早期干预的目的、设置的理由、内容、方式、对象、教师的条件、效果的评价以及开展的步骤等9个问题,提出了自己的看法。 相似文献
26.
Mary Maxwell 《Zygon》1992,27(1):51-64
Abstract. The phenomenon of moral inertia is often explained by reference to all-encompassing features of human nature, such as laziness and cowardice, but in fact it has many causes. A modern person may fail to "stand up" to social evil because he has difficulty seeing it-perhaps because it is deliberately hidden or because she and her neighbors cannot find ways to recognize and discuss it as a soluble problem. Fourteen factors contributing to moral inertia will be listed here under the headings of cognitive and linguistic factors. Further, a consideration of ideology's role (both liberal and Marxist) in inhibiting action against social evil will be presented. 相似文献
27.
Roger W. Sperry 《Zygon》1992,27(3):245-259
Abstract. My account of the recent turnabout in the treatment of mental states in science and its basis in a modified concept of causal determinism and my claim that this opens the way for beliefs and values consistent with science are here reaffirmed in response to perceived weaknesses and "inherent incompleteness." Contested issues are reviewed to better clarify the main thesis. An inherent weakness in respect to deep spiritual needs is recognized and tentative remedial measures explored. 相似文献
28.
Charles L. Spirrison Keith A. Noland Luke B. Savoie 《Journal of psychopathology and behavioral assessment》1992,14(1):65-79
The Treatment Evaluation Inventory (TEI), a frequently used measure of treatment acceptability, was used by 164 undergraduates to rate the acceptability of each of the following treatments: differential reinforcement of other behavior, exclusionary time-out, overcorrection, medical restraint, contingent electric shock, and physical restraint. TEI ratings of each treatment type were grouped separately, variance-covariance matrices were formed and compared, and data were subjected to factor analysis. The results indicated that the factor structure of the TEI varied with the treatment it was used to evaluate. Item analysis of the TEI indicated a high degree of internal consistency, although item-total correlations varied between rated treatments. The findings suggest that although the TEI is a reliable instrument, sensitive assessment of the treatment acceptability construct probably requires multidimensional measurement. 相似文献
29.
This paper compares three groups of individuals in their beliefs about charitable giving. Focusing upon their preferences for different kinds of needy recipients, the paper compares the views of 49 people from (a) business, (b) professional and (c) ‘manual’ backgrounds. Their justifications of need provided the basis for comparisons on the basic themes of emotional response to requests for funds, to local versus overseas aid and to the relative roles of charity and state provision. It is argued that distinctions between the groups show the need to examine specific beliefs as well as generally held ideologies about charity. In addition, a further comparison of the groups is used to argue that they exemplify differences in the actual form of the gift relationship. These differences in form show the importance of examining charitable giving within specific social contexts, as well as with reference to the various ways of raising funds. 相似文献
30.
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