全文获取类型
收费全文 | 4794篇 |
免费 | 160篇 |
出版年
2021年 | 46篇 |
2020年 | 81篇 |
2019年 | 79篇 |
2018年 | 130篇 |
2017年 | 121篇 |
2016年 | 124篇 |
2015年 | 76篇 |
2014年 | 99篇 |
2013年 | 401篇 |
2012年 | 172篇 |
2011年 | 165篇 |
2010年 | 95篇 |
2009年 | 113篇 |
2008年 | 139篇 |
2007年 | 142篇 |
2006年 | 118篇 |
2005年 | 112篇 |
2004年 | 110篇 |
2003年 | 75篇 |
2002年 | 88篇 |
2001年 | 138篇 |
2000年 | 106篇 |
1999年 | 95篇 |
1997年 | 43篇 |
1996年 | 47篇 |
1993年 | 49篇 |
1992年 | 68篇 |
1991年 | 76篇 |
1990年 | 66篇 |
1989年 | 63篇 |
1988年 | 69篇 |
1987年 | 62篇 |
1986年 | 56篇 |
1985年 | 64篇 |
1984年 | 63篇 |
1983年 | 57篇 |
1982年 | 60篇 |
1981年 | 44篇 |
1979年 | 63篇 |
1978年 | 60篇 |
1977年 | 52篇 |
1976年 | 50篇 |
1975年 | 69篇 |
1974年 | 62篇 |
1973年 | 61篇 |
1972年 | 56篇 |
1971年 | 57篇 |
1968年 | 55篇 |
1967年 | 64篇 |
1966年 | 46篇 |
排序方式: 共有4954条查询结果,搜索用时 46 毫秒
991.
Stephen M. Edelson Mitchell T. Taubman O. Ivar Lovaas 《Journal of abnormal child psychology》1983,11(2):299-311
This study investigated the social context of self-injurious behavior in autistic, schizophrenic, and mentally retarded children residing in a state hospital. Social interactions between subjects and staff were recorded along with subjects' self-destructive behavior. The results showed a substantial increase in self-destructive behavior following the staff's presentation of demands, denials, and punishments in 19 of the 20 subjects. These results are consistent with the hypothesis that self-injurious behavior is a social behavior, which is determined by persons in the environment. In addition, the self-destructive behavior of one subject may have been largely self-stimulatory in nature. 相似文献
992.
Ilse E Gayl Jonathan O Roberts John S Werner 《Journal of experimental child psychology》1983,35(1):30-45
Karmel's check-pattern preference data for 13-week-old infants were reanalyzed using linear systems analysis. The two-dimensional Fourier amplitude spectrum was calculated for each of his eight checkerboard and random check patterns. The mean contrast sensitivity data for 3-month-old infants of Banks and Salapatek and the spatial frequency amplitudes of the patterns were used to derive three metrics to predict the looking times observed by Karmel. One was based on the sensitivity of the visual system to the single pattern component highest above threshold (maximum amplitude), the second was based on the total amount of pattern energy above threshold (total summation), and the third was based on the maximum amplitude with summation over nearby spatial frequency components (limited summation). The predictive power of the maximum amplitude and the total summation metrics depended on whether the pattern type was checkerboard or random check. The limited summation metric predicted looking times well for both pattern types. A linear function of the logarithm of the limited summation metric accounted for 91% of the total variance in looking time. 相似文献
993.
994.
995.
996.
William M Bernstein Blair O Stephenson Melvin L Snyder Robert A Wicklund 《Journal of experimental social psychology》1983,19(1):78-92
A male's decision to approach a physically attractive female stranger may be fraught with ambivalence. He is drawn by her beauty but he may fear rejection. The conflict lessens, however, if approach can occur under the guise of a motive other than desire to be with the attractive woman. This is because keeping one's true approach motive ambiguous may make direct personal rejection less likely. The effect of ambiguity on males' tendencies to approach females was explored in two experiments. In the first study, presented to subjects as a movie rating exercise, an excuse to sit with an attractive female confederate (a movie preference) was available to some subjects but not to others. As predicted, males only sat with the confederate when a reason for their affiliative behavior, other than her attractiveness, was available. In the second study, male-female dyads were run through the film rating paradigm with the female subjects in the role played by the confederate in Study I. The results of Study I were replicated for the dyads which included attractive females, as expected. The relationships between fear of failure and attributional ambiguity in social and achievement settings are examined. The tendency to discount a person's physical appearance as a cause of social behavior is discussed. 相似文献
997.
This study addressed the question: Do special education labels bias teachers' evaluations of children? Thirty primary level teachers were given different labels for the same child: learning disabled, educable mentally retarded, emotionally disturbed, normal, or no label. Teachers made behavioral observations from the same video-tape, completed a checklist, and graded the same academic work purportedly completed by the target child. Teachers' behavioral observations and grading of the academic work were not influenced by the special education labels, but the checklist scores were. Implications for the philosophical debate about the effects of labeling and for methods of classroom data collection by teachers are discussed. 相似文献
998.
999.
The development of a new scale suitable for research with the criminal offender was described. Based on the factor analysis of an item pool delineating sociopathic personality traits, five factors were derived to compose an 80-item criminal offender introspective report (COIR). 相似文献
1000.