全文获取类型
收费全文 | 3613篇 |
免费 | 173篇 |
国内免费 | 1篇 |
出版年
2023年 | 45篇 |
2022年 | 34篇 |
2021年 | 59篇 |
2020年 | 70篇 |
2019年 | 122篇 |
2018年 | 140篇 |
2017年 | 142篇 |
2016年 | 157篇 |
2015年 | 117篇 |
2014年 | 111篇 |
2013年 | 413篇 |
2012年 | 212篇 |
2011年 | 201篇 |
2010年 | 123篇 |
2009年 | 96篇 |
2008年 | 156篇 |
2007年 | 141篇 |
2006年 | 119篇 |
2005年 | 139篇 |
2004年 | 132篇 |
2003年 | 122篇 |
2002年 | 100篇 |
2001年 | 59篇 |
2000年 | 60篇 |
1999年 | 42篇 |
1998年 | 33篇 |
1997年 | 28篇 |
1996年 | 35篇 |
1995年 | 25篇 |
1994年 | 16篇 |
1993年 | 26篇 |
1992年 | 30篇 |
1991年 | 36篇 |
1990年 | 39篇 |
1989年 | 22篇 |
1988年 | 30篇 |
1987年 | 28篇 |
1986年 | 29篇 |
1985年 | 24篇 |
1984年 | 33篇 |
1983年 | 28篇 |
1982年 | 14篇 |
1981年 | 10篇 |
1980年 | 12篇 |
1979年 | 14篇 |
1978年 | 15篇 |
1977年 | 20篇 |
1976年 | 19篇 |
1975年 | 10篇 |
1974年 | 10篇 |
排序方式: 共有3787条查询结果,搜索用时 15 毫秒
921.
Fons J. R. van de Vijver Michelle Helms-Lorenz Max J. A. Feltzer 《International journal of psychology》1999,34(3):149-162
Acculturative strategies and cognitive acculturation were studied among 118 Dutch migrant children (age: 7–12 years). Both an exploratory factor analysis and a Linear Logistic Test Model analysis provided evidence for the bipolar unidimensionality of Berry's four acculturation strategies; integration constituted one pole and assimilation, separation, and marginalization the other. Integration was by far the most popular strategy. Cognitive performance was measured by the Snijders-Oomen Nonverbal Intelligence Test, school report measures, and a computer-assisted choice reaction-time measure. A good fit was found for a structural model that postulated cognitive acculturation as the latent variable linking background measures (i.e. acculturation strategy, second language usage, age, and gender) to the cognitive measures. Relationships between background variables and cognitive performance were stronger in the first than in the second generation. Both older children and children who favour an integration strategy showed a higher degree of cognitive acculturation. 相似文献
922.
Arlene de la Mora Daniel W. Russell Claibourne I. Dungy Mary Losch Lois Dusdieker 《Journal of applied social psychology》1999,29(11):2362-2380
Development of the Iowa Infant Feeding Attitude Scale (IIFAS) is described. In Study 1, a set of 17 items was selected on the basis of responses by 125 postpartum women. Analyses of the reliability and validity were then conducted. In Study 2, these analyses were replicated using data from an independent sample of 130 postpartum women. Study 3 involved an analysis of the ability of scores on the IIFAS to predict duration of breast-feeding among a sample of 725 women who had initiated that method of feeding their babies while in the hospital. Limitations of this research and possible future uses of the IIFAS in studies addressing the determinants and consequences of infant-feeding attitudes are discussed. 相似文献
923.
van der Smagt MJ Verstraten FA Vaessen EB van Londen T van de Grind WA 《Perception》1999,28(11):1397-1411
When, after prolonged viewing of a moving stimulus, a stationary (test) pattern is presented to an observer, this results in an illusory movement in the direction opposite to the adapting motion. Typically, this motion aftereffect (MAE) does not occur after adaptation to a second-order motion stimulus (i.e. an equiluminous stimulus where the movement is defined by a contrast or texture border, not by a luminance border). However, a MAE of second-order motion is perceived when, instead of a static test pattern, a dynamic test pattern is used. Here, we investigate whether a second-order motion stimulus does affect the MAE on a static test pattern (sMAE), when second-order motion is presented in combination with first-order motion during adaptation. The results show that this is indeed the case. Although the second-order motion stimulus is too weak to produce a convincing sMAE on its own, its influence on the sMAE is of equal strength to that of the first-order motion component, when they are adapted to simultaneously. The results suggest that the perceptual appearance of the sMAE originates from the site where first-order and second-order motion are integrated. 相似文献
924.
Virginia W. Berninger
Adele Proctor
Irma De Bruyn
Roderick Smith 《Journal of School Psychology》1988,26(4):341-357The validity of a test battery, organized by a theoretical framework of levels of language processing and production, was evaluated at the end of kindergarten and theend of first grade. At the end of kindergarten two levels of oral language, phonemic and lexical, and at the end of first grade three levels of oral language, phonemic, lexical, and text, were correlated with word decoding and reading comprehension. At the end of first grade, the combination of phonemic and lexical skills accounted for more variance in both word decoding and reading comprehension than either phonemic or lexical skills alone. The strength of the relationship between specific levels of oral language and specific component reading skills changed after formal reading instruction was introduced. Functional relationships were found between improvement in phonemic skills or lexical skills and improvement in word decoding. Partial correlations between two levels of oral language with a third partialed out (receptive or expressive task requirements held constant) provided evidence for three semiindependent levels of oral language—phonemic, lexical, and text. Because the battery has concurrent and construct validity, school psychologists can use it to monitor beginning readers in order to prevent reading disabilities due to subtle language dysfunctions. 相似文献
925.
Adolfo García de la Sienra 《Erkenntnis》1988,29(3):299-341
The aim of the present paper is to provide a logical reconstruction of the Marxian Theory of Value. This reconstruction is based upon the concept of abstract as opposed to that of homogeneous labor. Abstract labour is a social relation that holds in a market economy, (at least) whenever the profit rate is uniform; it consists in a comparison of the different labors through the exchange relationship. The author proved in a different place (see García de la Sienra, 1987) that there exists a mathematical representation of abstract labor which is unique up to similarity transformations. The existence of this function — which is none other than the value function — is the basis of the present axiomatization, which includes detailed reconstructions of two of the most important models of the theory. 相似文献
926.
927.
Children with early brain damage, unlike adult stroke victims, often go on to develop nearly normal language. However, the route and extent of their linguistic development are still unclear, as is the relationship between lesion site and patterns of delay and recovery. Here we address these questions by examining narratives from children with early brain damage. Thirty children (ages 3;7–10;10) with pre- or perinatal unilateral focal brain damage and their matched controls participated in a storytelling task. Analyses focused on linguistic proficiency and narrative competence. Overall, children with brain damage scored significantly lower than their age-matched controls on both linguistic (morphological and syntactic) indices and those targeting broader narrative qualities. Rather than indicating that children with brain damage fully catch up, these data suggest that deficits in linguistic abilities reassert themselves as children face new linguistic challenges. Interestingly, after age 5, site of lesion does not appear to be a significant factor and the delays we have witnessed do not map onto the lesion profiles observed in adults with analogous brain injuries. 相似文献
928.
Catherine Wihtol de Wenden 《Political psychology》1998,19(1):133-146
Even though France has experienced increasing and inevitable feminization in its immigrant population since 1974, research has tended to ignore the role of immigrant women, especially Muslim women, in the migration process. Public attention has been diverted by concern over such relatively marginal issues as the headscarf affair, and insufficient attention has been paid to the important role Muslim women play in France, especially those coming from Algeria. These women function as cultural mediators between the traditional culture of the sending country and the modern one of the host country. They see themselves as both tradition-bearers and integration proponents. The demands of immigration have given rise to the growth and development of different leaders, among them cultural mediators seeking a bridge between Islam and modernity, economic mediators seeking to establish women in the media and as entrepreneurs, and political mediators who seek access to power at the local level for the immigrants. These new mediators will eventually shape a new generation of female actors very far from the traditional countries of origin, although for the time being they still suffer from the inequality of rights for women and chances in their overall social life. 相似文献
929.
930.
The ability of middle-aged adults to recall their body size and events occurring up to 40 years earlier was assessed. Ninety-one
subjects recalled their relative height, weight, and fatness during childhood, early adolescence and late adolescence. Accuracy
of these memories was compared with the accuracy of current reports. The ability to accurately date benchmarks of their maturation
such as menarche and year of maximal growth in height was also examined. Accuracy of reports did not decline uniformly over
time. In general, reports of childhood physical characteristics were at least as accurate as reports of current characteristics;
that is, they did not differ significantly from current reports. Males were less accurate in their reports of relative height
and fatness during early adolescence and childhood.
This project has been funded at least in part with federal funds from the U.S. Department of Agriculture, Agricultural Research
Service under contract number 53-3K06-5-10. The contents of this article do not necessarily reflect the views or policies
of the U.S. Department of Agriculture, nor does mention of trade names, commercial products, or organizations imply endorsement
by the U.S. Government. 相似文献