全文获取类型
收费全文 | 3326篇 |
免费 | 194篇 |
国内免费 | 270篇 |
出版年
2023年 | 35篇 |
2022年 | 41篇 |
2021年 | 45篇 |
2020年 | 93篇 |
2019年 | 98篇 |
2018年 | 121篇 |
2017年 | 109篇 |
2016年 | 102篇 |
2015年 | 95篇 |
2014年 | 89篇 |
2013年 | 323篇 |
2012年 | 146篇 |
2011年 | 172篇 |
2010年 | 124篇 |
2009年 | 120篇 |
2008年 | 147篇 |
2007年 | 204篇 |
2006年 | 165篇 |
2005年 | 122篇 |
2004年 | 100篇 |
2003年 | 62篇 |
2002年 | 62篇 |
2001年 | 137篇 |
2000年 | 137篇 |
1999年 | 95篇 |
1998年 | 29篇 |
1997年 | 40篇 |
1996年 | 25篇 |
1995年 | 19篇 |
1994年 | 31篇 |
1993年 | 23篇 |
1992年 | 50篇 |
1991年 | 64篇 |
1990年 | 45篇 |
1989年 | 52篇 |
1988年 | 50篇 |
1987年 | 32篇 |
1986年 | 22篇 |
1985年 | 28篇 |
1984年 | 26篇 |
1983年 | 21篇 |
1982年 | 16篇 |
1981年 | 21篇 |
1979年 | 25篇 |
1974年 | 16篇 |
1973年 | 16篇 |
1971年 | 17篇 |
1969年 | 15篇 |
1968年 | 16篇 |
1967年 | 16篇 |
排序方式: 共有3790条查询结果,搜索用时 15 毫秒
21.
On the basis of previous theoretical and empirical analyses of the comparative structures of guilt and shame, the authors hypothesized that antecedent condition (personal inadequacy vs. moral norm violation), audience presence, and personal responsibility attribution would distinguish shame from guilt. Although the subject population was Hong Kong Chinese, evidence from previous studies suggests that the comparative structures of guilt and shame are quite similar across cultures. The subjects were asked to recall either a guilt or a shame incident, and their responses were then coded into the predictor variables. The results of the study indicated that guilt was most likely to emerge when individuals had violated a moral norm and held themselves responsible for their conduct. In contrast, shame emerged more frequently when subjects felt personally inadequate than when they had violated moral norms. Moreover, when a guilt incident was reported, and audience was rarely mentioned, whereas subjects who reported a shame incident would generally feel personally responsible and often mentioned being looked at or evaluated. However, neither personal responsibility nor the presence of an audience seemed to be essential for a person to experience shame. 相似文献
22.
23.
4-5年级学生的空间表征与几何能力的相关性研究 总被引:4,自引:1,他引:3
本研究是“学生空间能力和几何能力关系”研究的一部分,以小学4、5年级学生为被试(共117人),以空问表征能力测验和几何能力测验为测验工具,初步探讨了学生空间表征与几何能力的关系。对数据结果的分析表明:①就总成绩而言,五年级学生的空间表在成绩明显高于四年级学生的成绩,但并不是空间表征的所有方面都存在着显著的年级差异;②就空间测验的总成绩而言,无论是四、五年级分别考察还是总起来考察,空间成绩与几何成绩之间的相关显著,但就各个分项而言,并不是空间测验的各项都与几何测验成绩有显著相关;学生的几何成绩在一定程度上可通过回归方程:Y_i=0.5736X_i+0.7635加以预测。 相似文献
24.
25.
26.
Human analog tests of object permanence were administered to various breeds of adult dogs (Canis familiaris). Experiment 1 showed that the performance of terriers, sporting, and working dogs did not differ. Dogs succeeded in solving invisible displacement problems, but performance was lower than in visible displacement tests. Familiarity with the task had some influence because invisible displacement tests were more successful if they were preceded by visible displacement tests. In Experiment 2, odor cues from the target object and the hiding screens were available or were masked. Results confirmed that success was lower in invisible than in visible displacement tests and that these problems were solved on the basis of representation of visual information rather than on the basis of olfactory cues or of local rule learning. Dogs are compared with other species that display Stage 6 object permanence. 相似文献
27.
The armoury of statistical techniques has recently been enhanced with the multilevel model for longitudinal data. The present article explains the multilevel model for longitudinal data to the statistically non-sophisticated reader. It shows how the model relates to the five rationales of longitudinal research, as they were put forward by Baltes and Nesselroade (1979). In addition, it shows how the model matches Wohlwill's methodology of developmental functions. To elucidate the model further, three applications are given. The applications pertain to the development of children's sleeping duration during the first 18 months of life, the effects of early hospitalization on the daily frequency of crying, and the developmental relationship between social and solitary play. 相似文献
28.
Adrienne Y. Lee 《Behavior research methods》1992,24(2):205-212
HyperCard was used to develop a simplified tutoring system whose principles were based on a learning theory, and a genetics tutoring system was evaluated experimentally. Learning was studied by examining immediate versus delayed feedback after an error was made. Such tutoring systems aid in psychological studies of learning, because experimental variables can be easily manipulated. HyperCard provides a good vehicle for tutoring system development, since it requires no extensive programming skills. 相似文献
29.
Despite importance for theories of perception, controversy exists as to whether information is available to the perceptual system about involuntary as well as voluntary eye movements. We measured the perceived direction of targets flashed briefly in an otherwise dark field during the primary phase of optokinetic afternystagmus (OKAN), an involuntary eye movement that persists in darkness following optokinetic stimulation. Perceived direction was measured by unseen pointing in one experiment and by pointing made under visual control in a second experiment. Pointing was essentially veridical in both experiments, indicating that accurate extra-retinal information about eye position (presumably, as efference copy) exists for OKAN. Illusory motion of visual targets, which can occur during involuntary oculomotor responses, therefore cannot be attributed to a lack of efference-copy signals for such eye movements. 相似文献
30.
The developmental change in subjective probability during adolescence, an important period for establishing the probability concept, was investigated. 75 Japanese adolescents, from 12 to 23 yr. of age, were asked to make probability judgments for a lottery under 15 conditions. Analysis showed that with increase in age their subjective probability came closer to the objective probability. Discussion of these results took into consideration recent studies on the development of the concept of probability. 相似文献