全文获取类型
收费全文 | 14127篇 |
免费 | 604篇 |
国内免费 | 13篇 |
专业分类
14744篇 |
出版年
2023年 | 75篇 |
2021年 | 119篇 |
2020年 | 216篇 |
2019年 | 267篇 |
2018年 | 362篇 |
2017年 | 361篇 |
2016年 | 380篇 |
2015年 | 275篇 |
2014年 | 352篇 |
2013年 | 1567篇 |
2012年 | 626篇 |
2011年 | 665篇 |
2010年 | 400篇 |
2009年 | 430篇 |
2008年 | 580篇 |
2007年 | 575篇 |
2006年 | 584篇 |
2005年 | 531篇 |
2004年 | 496篇 |
2003年 | 513篇 |
2002年 | 503篇 |
2001年 | 253篇 |
2000年 | 236篇 |
1999年 | 226篇 |
1998年 | 204篇 |
1997年 | 218篇 |
1996年 | 199篇 |
1995年 | 176篇 |
1994年 | 164篇 |
1993年 | 158篇 |
1992年 | 146篇 |
1991年 | 155篇 |
1990年 | 136篇 |
1989年 | 130篇 |
1988年 | 93篇 |
1987年 | 120篇 |
1986年 | 130篇 |
1985年 | 164篇 |
1984年 | 164篇 |
1983年 | 143篇 |
1982年 | 137篇 |
1981年 | 149篇 |
1980年 | 126篇 |
1979年 | 110篇 |
1978年 | 123篇 |
1977年 | 111篇 |
1976年 | 113篇 |
1975年 | 98篇 |
1974年 | 107篇 |
1973年 | 89篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
201.
202.
Two studies were designed to explore the role of performance factors as sources of the frequently noted higher male scores on visual-spatial ability tests. In the first study, the mental rotations test (MRT) was administered to male and female college students of equally high quantitative ability (based on SAT math scores). Although males had significantly more correct responses on the test than did females, their advantage was eliminated when the ratio of correct responses to items attempted was used as the dependent measure. In the second study, the same test was administered to new groups of male and female college students. In this sample, the males had significantly higher SAT math scores. The MRT was administered under standard, timed conditions and under untimed conditions. Both raw and ratio scores were calculated. With SAT math score as the covariate, analyses of covariance indicated that males demonstrated higher performance in the timed, raw-score condition but not in the untimed or in the ratio-score conditions. The theoretical and social policy implications of these studies are discussed. 相似文献
203.
Seventy-six undergraduates were given the titles and first lines of Beatles' songs and asked to recall the songs. Seven hundred and four different undergraduates were cued with one line from each of 25 Beatles' songs and asked to recall the title. The probability of recalling a line was best predicted by the number of times a line was repeated in the song and how early the line first appeared in the song. The probability of cuing to the title was best predicted by whether the line shared words with the title. Although the subjects recalled only 21% of the lines, there were very few errors in recall, and the errors rarely violated the rhythmic, poetic, or thematic constraints of the songs. Acting together, these constraints can account for the near verbatim recall observed. Fourteen subjects, who transcribed one song, made fewer and different errors than the subjects who had recalled the song, indicating that the errors in recall were not primarily the result of errors in encoding. 相似文献
204.
Rosalind A. Crawley Rosemary J. Stevenson David Kleinman 《Journal of psycholinguistic research》1990,19(4):245-264
The aim of the two experiments reported here was to distinguish between two heuristic strategies that have been proposed to account for the assignment of pronouns: the subject assignment strategy and the parallel function strategy. According to the subject assignment strategy, a pronoun is assigned to a preceding subject noun phrase, whereas according to the parallel function strategy, a pronoun is assigned to a previous noun phrase in the same grammatical position as the pronoun. These two strategies were tested by examining the interpretation of single object pronouns, first in a reading task and second in an assignment task. In both experiments, there was a strong preference for assigning an object pronoun to the preceding subject noun phrase, thus supporting the subject assignment strategy. However, this was only the case for pronouns that were linguistically ambiguous. When assignment was constrained by gender, there was no effect of either strategy. It is suggested that heuristic strategies are only used in the absence of other strong cues to assignment. 相似文献
205.
206.
Ellis's neurohormonal theory of criminality is briefly reviewed, and its relevance for understanding suicidal behavior is explored. It was found that many variables identified by Ellis as characteristic of criminals are also characteristic of suicidal individuals. In addition, Ellis's perspective identified many issues that have been explored only cursorily or not at all by suicidologists. Ellis's theory may, therefore, have heuristic value for suicidology. 相似文献
207.
Sources of difficulty in deductive reasoning: The THOG task 总被引:2,自引:0,他引:2
David P. O'Brien Ira A. Noveck George M. Davidson Shalom M. Fisch R. Brooke Lea Jason Freitag 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1990,42(2):329-351
The THOG task presents four designs constructed from two shapes and two colours. Subjects are told that the experimenter has written down one of the shapes and one of the colours and are provided the rule that if, and only if, any design has either the shape or the colour, but not both, written down, then it is a THOG. Finally, they are given an exemplar and are asked to classify the remaining designs. Successful solution requires construction of hypotheses, reasoning under each hypothesis, and comparison of the results under each to reach a final conclusion. Few subjects are able to provide adequate responses on the standard version of the task. We present the results of four experiments, with 160 undergraduates each presented with one of eight versions of the task. Experiments 1 and 2 indicate that (1) some subjects think that the properties that are written down are identical to those of the exemplar, although these are not the same subjects who exhibit the modal error pattern, (2) many subjects correctly understand the disjunction of the rule but fail to consider the hypotheses, and (3) poor initial encoding of the problem is not easily corrected. Experiment 3 investigates the sufficiency of the claim of Griggs and Newstead (1982) that appropriate problem solution follows from explicit presentation of all problem information (including use of positive labels for properties that are not written down), and Experiment 4 investigates the necessity of the claim. The results of Experiments 3 and 4 show that presenting positive category labels does increase the frequency of correct solution; however, positive category labels are not necessary for such improvement. Separation of the labels of the THOG rule from those of the exemplar, or informing subjects that only one other design is a THOG, also increases the frequency of successful solution. The results suggest that many people have some fairly sophisticated reasoning skills. but application of these skills is easily discouraged when the features of the task lead to poor initial encoding. 相似文献
208.
Regression analyses of repeated measures data in cognitive research 总被引:16,自引:0,他引:16
R F Lorch J L Myers 《Journal of experimental psychology. Learning, memory, and cognition》1990,16(1):149-157
Repeated measures designs involving nonorthogonal variables are being used with increasing frequency in cognitive psychology. Researchers usually analyze the data from such designs inappropriately, probably because the designs are not discussed in standard textbooks on regression. Two commonly used approaches to analyzing repeated measures designs are considered in this article. It is argued that both approaches use inappropriate error terms for testing the effects of independent variables. A more appropriate analysis is presented, and two alternative computational procedures for the analysis are illustrated. 相似文献
209.
210.
David Ingram 《Human Studies》1997,20(4):413-428
James Bohman has succeeded in reinvigorating the old debate over explanation and understanding by situating it within contemporary discussions about sociological indeterminacy and complexity. I argue that Bohman's preference for a paradigm based on Habermas's theory of communicative action is justifiable given the explanatory deficiencies of ethnomethodological, rational choice, rule-based, and functionalist methodologies. Yet I do not share his belief that the paradigm is preferable to less formalized models of interpretation. 相似文献