全文获取类型
收费全文 | 23019篇 |
免费 | 171篇 |
出版年
2024年 | 9篇 |
2023年 | 53篇 |
2022年 | 40篇 |
2021年 | 66篇 |
2020年 | 94篇 |
2019年 | 81篇 |
2018年 | 3586篇 |
2017年 | 2924篇 |
2016年 | 2370篇 |
2015年 | 279篇 |
2014年 | 182篇 |
2013年 | 427篇 |
2012年 | 782篇 |
2011年 | 2616篇 |
2010年 | 2632篇 |
2009年 | 1512篇 |
2008年 | 1887篇 |
2007年 | 2301篇 |
2006年 | 186篇 |
2005年 | 281篇 |
2004年 | 233篇 |
2003年 | 165篇 |
2002年 | 99篇 |
2001年 | 54篇 |
2000年 | 83篇 |
1999年 | 35篇 |
1998年 | 31篇 |
1997年 | 29篇 |
1996年 | 15篇 |
1995年 | 8篇 |
1994年 | 14篇 |
1993年 | 8篇 |
1992年 | 7篇 |
1991年 | 10篇 |
1990年 | 20篇 |
1989年 | 6篇 |
1988年 | 7篇 |
1987年 | 6篇 |
1985年 | 5篇 |
1984年 | 3篇 |
1982年 | 3篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1976年 | 3篇 |
1973年 | 2篇 |
1971年 | 5篇 |
1969年 | 2篇 |
1968年 | 3篇 |
1967年 | 3篇 |
1966年 | 3篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
Amador-Campos JA Forns-Santacana M Martorell-Balanzó B Guàrdia-Olmos J Peró-Cebollero M 《Psychological reports》2005,97(3):847-860
Confirmatory factor analysis examined the factor structure of DSM IV Attention Deficit Hyperactivity Disorder symptoms and analyzed the differences in informants' ratings of ADHD symptoms by children's age and sex. A sample of 1,018 Spanish school children, 574 girls and 444 boys, ages 4 to 12 years, was rated by teachers and parents. Confirmatory factor analysis showed a similar fit for the three-factor model of Inattention, Hyperactivity, and Impulsivity (teachers: CFI = .976, RMR = .041, % of total variance = 83.2; parents: CFI = .969, RMR = .037, % of total variance = 82.7) and for the two-factor model of Inattention and Hyperactivity Impulsivity (teachers: CFI = .958, RMR = .044, % of total variance = 79.3; parents: CFI = .961, RMR = .038, % of total variance, 79.9). The two-factor model was selected as a parsi monious representation of the teachers' and parents' ratings of ADHD symptoms. Analyses of variance indicated significant differences in teachers' and parents' mean ratings across sex and school grades of children. 相似文献
122.
This study examined the dimensional structure of Tomás-Sábado and Gómez-Benito's Death Anxiety Inventory and Templer, et al.'s Death Depression Scale-Revised. The responses of 244 Spanish nurses to the Spanish forms of both scales were evaluated by means of a principal axis factor analysis with direct Oblimin rotation. Five significant factors were identified: Internally Generated Death Anxiety, Death Depression, Externally Generated Death Anxiety, Death Threat, and Death Sadness, accounting for 51.6% of the variance. The distribution of the factor loadings for the items of both scales on the five factors supported the discriminant validity of the constructs specific to each of the scales and justified their use in evaluating death anxiety and death depression independently. 相似文献
123.
Sheehan's shortened form of Betts' Questionnaire Upon Mental Imagery is one of the most widely used inventories for measuring imaging. Participants were 562 undergraduate students (414 women and 148 men), with a mean age of 20.2 yr. In a principal components analysis followed by varimax orthogonal rotation for the Spanish version, eight factors were identified, six of which coincide with those of the original English version. Internal consistency was .92 (Cronbach alpha). Scores on the Betts Questionnaire Upon Mental Imagery correlated -.34 with those on the Gordon Test of Visual Imagery Control, .58 with those on the Vividness of Visual Imagery Questionnaire, and .02 with the Verbalizer-Visualizer Questionnaire. 相似文献
124.
The reason why, since Descartes, nobody has found a solution to the mind–body problem seems to be that the problem itself
is a false or pseudo-problem. The discussion has proceeded within a pre-Cartesian conceptual framework which itself is a source
of the difficulty. Dualism and all its alternatives have preserved the same pre-Cartesian conceptual framework even while
denying Descartes’ dualism. In order to avoid this pseudo-problem, I introduce a new perspective with three elements: the
subject, the observed object, and the conditions of observation (given by the internal and external tools of observation).
On this new perspective, because of the conditions of observation, the mind and the brain belong to epistemologically different
worlds.
An erratum to this article is available at . 相似文献
125.
126.
Matthew Hoffman 《Jewish History》2005,19(1):65-78
The Russian Jewish intellectual, Chaim Zhitlovsky (1865–1943), a leading architect of secular Jewish culture and thought, was a central figure in the progressive Jewish intelligentsia of the late nineteenth and early twentieth century. In an essay written in 1927, Yidn un Yiddishkayt (Jews and Jewishness), he sought to define the secular essence of what he calls Yiddishkayt. This essay is not the first in Zhitlovskys long publicistic career in which he searches for new, secular definitions of Jewish identity and culture. But this essay differs, since it is marked by Zhitlovskys use of contemporary social scientific notions of race and racial traits to conceptualize what he believes constitutes Jewishness in a non-religious context, along with his adoption of the mystical Jewish concept of the pintele yid, the theory of an innate Jewishness embodied by a Jewish spark. Zhitlovskys desire to craft a truly secular theory of Jewish identity led him ironically to accept models of Jewish identity at odds with his stated larger vision. In turning to contemporary racial theory, as well as long nurtured mystical models of Yiddishkayt, Zhitlovsky reveals the wide range of ideological discourses that led him to innovative and controversial notions of modern Jewish identity. 相似文献
127.
A classical definition of automaticity establishes that automatic processing occurs without attention or consciousness, and cannot be controlled. Previous studies have demonstrated that semantic priming can be reduced if attention is directed to a low-level of analysis. This finding suggests that semantic processing is not automatic since it can be controlled. In this paper, we present two experiments that demonstrate that semantic processing may occur in the absence of attention and consciousness. A negative semantic priming effect was found when a low-level prime-task was required and when a masked lexical decision prime-task was performed (Experiment 1). This paper also discusses the limitations of the inhibitory mechanism involved in negative semantic priming effect. 相似文献
128.
129.
Marsh RL Hicks JL Cook GI 《Journal of experimental psychology. Learning, memory, and cognition》2005,31(1):68-75
In recent theories of event-based prospective memory, researchers have debated what degree of resources are necessary to identify a cue as related to a previously established intention. In order to simulate natural variations in attention, the authors manipulated effort toward an ongoing cognitive task in which intention-related cues were embedded in 3 experiments. High effort toward the ongoing task resulted in decreased prospective memory only when the cognitive processing required to identify the cue was similar to the cognitive processing required to complete the ongoing activity. When the required processing was different for the 2 tasks, cue detection was not affected by manipulated effort, despite there being an overall cost to decision latencies in the ongoing tasks from possessing the intention. Resource allocation policies and factors that affect them are proposed to account for ongoing vs. prospective memory task performance. 相似文献
130.
Eunjeong?KangEmail author Ana María?Brannan Craig Anne?Heflinger 《Journal of child and family studies》2005,14(1):43-56
The aim of this study was to examine differences in responses to the Caregiver Strain Questionnaire (CGSQ) between African American and White caregivers of children with emotional and behavioral challenges. Significant item- and scale-level differences were detected across groups with African Americans consistently reporting less strain. We examined whether these differences were more likely due to nonequivalent measurement than to real differences in the experience of caregiver strain. Confirmatory factor analysis showed that the model fit the data well for both racial groups, but there were some differences in structural components. Internal consistency was equivalent across the groups. In an examination of criterion validity, regression analyses showed that African American caregivers experienced a slower rate of increase in objective caregiver strain at a given increase in child internalizing problems. No other race differences were found in the regression analyses. In general, we conclude that the CGSQ can be useful for detecting caregiver strain and identifying family support needs for both White and African American caregivers. Differences across groups in reports of caregiver strain, however, call for more research on racial differences in the impact on the family of caring for a child with emotional and behavioral disorders. 相似文献