全文获取类型
收费全文 | 16353篇 |
免费 | 749篇 |
国内免费 | 8篇 |
出版年
2020年 | 183篇 |
2019年 | 182篇 |
2018年 | 283篇 |
2017年 | 264篇 |
2016年 | 309篇 |
2015年 | 221篇 |
2014年 | 291篇 |
2013年 | 1204篇 |
2012年 | 525篇 |
2011年 | 490篇 |
2010年 | 324篇 |
2009年 | 316篇 |
2008年 | 448篇 |
2007年 | 465篇 |
2006年 | 397篇 |
2005年 | 402篇 |
2004年 | 354篇 |
2003年 | 306篇 |
2002年 | 331篇 |
2001年 | 690篇 |
2000年 | 681篇 |
1999年 | 463篇 |
1998年 | 181篇 |
1997年 | 173篇 |
1996年 | 167篇 |
1994年 | 145篇 |
1992年 | 372篇 |
1991年 | 347篇 |
1990年 | 361篇 |
1989年 | 305篇 |
1988年 | 297篇 |
1987年 | 287篇 |
1986年 | 262篇 |
1985年 | 267篇 |
1984年 | 246篇 |
1983年 | 215篇 |
1982年 | 175篇 |
1979年 | 229篇 |
1978年 | 187篇 |
1977年 | 154篇 |
1975年 | 197篇 |
1974年 | 240篇 |
1973年 | 235篇 |
1972年 | 187篇 |
1971年 | 184篇 |
1970年 | 149篇 |
1969年 | 178篇 |
1968年 | 211篇 |
1967年 | 191篇 |
1966年 | 157篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
19 pairs of third grade children from intact and single-parent families matched for sex, intellectual ability, and academic achievement were administered a brief self-concept measure. Teachers and parents rated the students' self-concept on similar measures. There were no significant differences in scores between the groups; however, within each group the teachers and parents consistently overestimated students' self-esteem. 相似文献
152.
153.
T Eckes 《Archiv für Psychologie》1989,141(2):99-112
An investigation is conducted into whether male and female perceivers hold substantially different implicit theories of personality. 24 male and 24 female subjects were asked to sort a set of 36 trait names into groups of similar traits. On the basis of these data, proximities between trait names and proximities between groupings (or partitions) were computed and subjected to a differential statistical analysis. Neither a global test for sex-specific groupings of trait names nor tests at the level of perceived pairwise trait relationships yielded significant differences. It is concluded that aggregation of sorting data over both male and female perceivers is warranted without too big a loss of information. On the methodological side, this paper demonstrates the feasibility of a quantitative approach to handling the problem of data aggregation in the context of studies using the sorting method as a data-gathering technique. 相似文献
154.
In an experimental investigation it is demonstrated that motor behavior-in contrast to the opinion forwarded in the literature-is not only elicitable by means of direct persuasion, but also to a great extend by mere indirect suggestion, (feigning of stimuli). A differential investigation of these effects provided evidence that reactions to feigned stimuli are highly person specific and relatively homogenous concerning the respective instruments whereas objective stimuli lead to reactions relatively specific for the respective instrument applied. The findings are interpreted as an analog on to placebo-effects in the area of motor behavior. Their extend may be seen as an argument for a stronger concern with subjective reaction tendencies in this field. 相似文献
155.
Geoffrey Nelson 《American journal of community psychology》1989,17(4):459-483
The stress and coping paradigm was used as the framework for a longitudinal study of recently separated and married women. Data were gathered at three different interviews over a period of 18 months. Comparing the two groups of women, it was found that life strains in the areas of financial concerns and spouse relations were related to both income level and marital status, with low-income and separated women experiencing the highest levels of these strains. Also, the separated women used coping strategies emphasizing personal change and reported more positive changes related to their family, work, and material conditions. Regression analyses on the entire sample showed that life strains were inversely related to emotional well-being and that coping served a stress-buffering function. It was concluded that the emotional well-being of separated and married women must be considered in the context of stress, coping, and change processes. 相似文献
156.
A Bayesian approach to the testing of competing covariance structures is developed. The method provides approximate posterior probablities for each model under consideration without prior specification of individual parameter distributions. The method is based on ayesian updating using cross-validated pseudo-likelihoods. Given that the observed variables are the samefor all competing models, the approximate posterior probabilities may be obtained easily from the chi square values and other known constants, using only a hand calculator. The approach is illustrated using and example which illustrates how the prior probabilities can alter the results concerning which model specification is preferred. 相似文献
157.
Three hemifield tachistoscopic studies of a right-handed patient with acquired Broca's aphasia and deep dyslexia, but with intact visual fields, are presented to support the hypothesis of right hemisphere (RH) participation in deep dyslexic reading. A systematic comparison of this deep dyslexic with the disconnected RHs of two patients with complete cerebral commissurotomy disclosed a similar, but not identical, pattern of abilities. The results demonstrate partial reliance on the RH for accessing the meaning of single words, but not for phonological encoding in this patient. 相似文献
158.
159.
A componential model for mental addition 总被引:2,自引:0,他引:2
K F Widaman D C Geary P Cormier T D Little 《Journal of experimental psychology. Learning, memory, and cognition》1989,15(5):898-919
A componential model capable of representing simple and complex forms of mental addition was proposed and then tested by using chronometric techniques. A sample of 23 undergraduate students responded to 800 addition problems in a true-false reaction time paradigm. The 800 problems comprised 200 problems of each of four types: two single-digit addends, one single- and one double-digit addend, two double-digit addends, and three single-digit addends. The results revealed that the columnwise product of addends, a structural variable consistent with a memory network retrieval process, was the best predictor of mental addition for each of the four types of problem. Importantly, the componential model allowed estimation of effects of several other structural variables, e.g., carrying to the next column and speed of encoding of digits. High levels of explained variance verified the power of the model to represent the reaction time data, and the stability of estimates across types of problem implied consistent component use by subjects. Implications for research on mental addition are discussed. 相似文献
160.
Competencies in social and life skills of a group of students expecting to leave school at the end of Grade 10 in Australia is compared with groups expecting to continue. Academic performance and skills were also assessed. The results of the study indicated that the potential early school-leavers were disadvantaged both socio-economically and academically. But, surprisingly, the findings indicated that they were not significantly different from the other two groups of students targeted in the study in terms of their social and life skills. The results imply that potential early leavers in school populations may be unnecessarily disadvantaged because school programmes, in concentrating on a narrow range of cognitive skills, do not build on personal competency skills already possessed by students of all levels of ability. Whilst this is the case, potential early school-leavers will be likely to continue to be disaffected and disadvantaged educationally. 相似文献