全文获取类型
收费全文 | 704篇 |
免费 | 34篇 |
出版年
2023年 | 9篇 |
2022年 | 6篇 |
2021年 | 6篇 |
2020年 | 13篇 |
2019年 | 16篇 |
2018年 | 28篇 |
2017年 | 20篇 |
2016年 | 30篇 |
2015年 | 20篇 |
2014年 | 14篇 |
2013年 | 77篇 |
2012年 | 28篇 |
2011年 | 35篇 |
2010年 | 18篇 |
2009年 | 27篇 |
2008年 | 33篇 |
2007年 | 26篇 |
2006年 | 25篇 |
2005年 | 18篇 |
2004年 | 23篇 |
2003年 | 12篇 |
2002年 | 14篇 |
2001年 | 15篇 |
2000年 | 14篇 |
1999年 | 12篇 |
1998年 | 7篇 |
1997年 | 9篇 |
1996年 | 6篇 |
1994年 | 5篇 |
1993年 | 4篇 |
1992年 | 14篇 |
1991年 | 9篇 |
1990年 | 4篇 |
1989年 | 15篇 |
1988年 | 9篇 |
1987年 | 6篇 |
1986年 | 7篇 |
1985年 | 13篇 |
1984年 | 8篇 |
1983年 | 4篇 |
1981年 | 6篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1977年 | 3篇 |
1975年 | 7篇 |
1974年 | 7篇 |
1972年 | 4篇 |
1970年 | 3篇 |
1968年 | 9篇 |
1967年 | 9篇 |
排序方式: 共有738条查询结果,搜索用时 15 毫秒
291.
292.
293.
294.
The effects of the Program for Academic Survival Skills (PASS), a group behavior management program, on behavioral observation data and standardized achievement test measures were investigated. Fifty-four of the 96 selected low-achieving, low-survival-skill students of normal IQ were assigned to an experimental condition in which their teachers used PASS. The remaining 42 were assigned to a control condition. Results indicated PASS produced significant gains in survival skills during its operation and one week following program termination in both reading and mathematics periods across grades 1–3. Findings for achievement indicated a significant gain for first-grade experimentals only in reading, with a similar but nonsignificant gain for first-grade mathematics. 相似文献
295.
C A Hill 《Journal of personality and social psychology》1987,52(5):1008-1018
The Interpersonal Orientation Scale was developed to focus on four dimensions assumed to underlie affiliation motivation: social comparison, emotional support, positive stimulation, and attention. Factor analyses basically supported the proposed multidimensional construct. Evidence for the validity of the four dimensions was provided by their correlations with measures of constructs conceptually related to affiliation motivation and their lack of correlation with measures conceptually unrelated to affiliation motivation. Moreover, in a laboratory study, each motivational subscale tended to correlate most highly with role-played responses in a situation affording the relevant incentive type. Future research on social motivation and interaction will profit from identifying the particular incentives that are salient in a giving setting. 相似文献
296.
297.
Visual perseveration was investigated within mentally retarded and second, fifth, and eighth grade normal children (Ns = 12 each group). Subjects matched an auditorially presented click to the onset and offset of visually presented stimuli. Time differences between visual stimulus offset and the point at which subjects reported simultaneity of the click and visual stimulus offset was assumed to reflect visual perseveration. Results showed: (a) no differences between the normal children as a function of age; (b) no difference between groups for stimuli of 100 msec. or longer duration; and (c) retarded subjects judged stimuli of 20 and 50 msec. to be of shorter duration than did normal subjects. This highly specific distinction between retarded and normal subjects suggests a difference in an early stage of perceptual processing. 相似文献
298.
We report two experiments in which we used animated averaged faces to examine infants' ability to perceive and discriminate facial motion. The faces were generated by using the motion recorded from the faces of volunteers while they spoke. We tested infants aged 4-8 months to assess their ability to discriminate facial motion sequences (condition 1) and discriminate the faces of individuals (condition 2). Infants were habituated to one sequence with the motion of one actor speaking one phrase. Following habituation, infants were presented with the same sequence together with motion from a different actor (condition 1), or a new sequence from the same actor coupled with a new sequence from a new actor (condition 2). Infants demonstrated a significant preference for the novel actor in both experiments. These findings suggest that infants can not only discriminate complex and subtle biological motion cues but also detect invariants in such displays. 相似文献
299.
Visuospatial performance, assessed with the new, group-administered Judgment of Line Angle and Position test (JLAP-13), varied with sex and mathematical competence in a group of adolescents. The JLAP-13, a low-level perceptual task, was modeled after a neuropsychological task dependent upon functioning of the posterior region of the right hemisphere [Benton et al, 1994 Contributions to Neuropsychological Assessment: A Clinical Manual (New York: Oxford University Press)]. High-school boys (N = 52) performed better than girls (N = 62), with a large effect for sex (d = 1.11). Performance increased with mathematical competence, but the sex difference did not vary significantly across different levels of mathematics coursework. On the basis of earlier work, it was predicted that male, but not female, performance in line judgment would decline with disruptions to task geometry (page frame), and that the sex difference would disappear with disruptions to geometry. These predictions were supported by a number of univariate and sex-specific analyses, although an omnibus repeated-measures analysis did not detect the predicted interaction, most likely owing to limitations in power. Thus, there is partial support for the notion that attentional predispositions or strategies may contribute to visuospatial sex differences, with males more likely than females to attend to, and rely upon, internal or external representations of task geometry. Additional support for this hypothesis may require development of new measures or experimental manipulations with more powerful geometrical disruptions. 相似文献
300.
This study examined patterns of between-generation continuity in substance use from generation 1 (G1) parents to generation 2 (G2) adolescents and from G2 adult substance use and G1 substance use to generation 3 (G3) problem behavior in childhood. Structural equation modeling of prospective, longitudinal data from 808 participants, their parents, and their children showed low levels of G1 to G2 cross-generational continuity in the general tendency to use drugs. This effect was fully mediated by G2 early adolescent behavior problems. Drug-specific residual effects were observed across generations for cigarette smoking. Once established in adolescence, substance use in G2 showed stability over time. G2 substance use at age 27 significantly predicted G3 problem behavior. G1 substance use also was related to G3 problem behavior indirectly. These findings highlight the importance of interrupting intergenerational cycles of substance use and problem behavior. 相似文献