全文获取类型
收费全文 | 7031篇 |
免费 | 297篇 |
国内免费 | 2篇 |
出版年
2021年 | 85篇 |
2020年 | 128篇 |
2019年 | 110篇 |
2018年 | 174篇 |
2017年 | 163篇 |
2016年 | 206篇 |
2015年 | 155篇 |
2014年 | 190篇 |
2013年 | 668篇 |
2012年 | 333篇 |
2011年 | 337篇 |
2010年 | 217篇 |
2009年 | 201篇 |
2008年 | 294篇 |
2007年 | 303篇 |
2006年 | 252篇 |
2005年 | 268篇 |
2004年 | 256篇 |
2003年 | 236篇 |
2002年 | 244篇 |
2001年 | 123篇 |
2000年 | 84篇 |
1999年 | 117篇 |
1998年 | 103篇 |
1997年 | 104篇 |
1996年 | 86篇 |
1995年 | 79篇 |
1994年 | 74篇 |
1993年 | 79篇 |
1992年 | 89篇 |
1991年 | 81篇 |
1990年 | 68篇 |
1989年 | 50篇 |
1988年 | 48篇 |
1987年 | 57篇 |
1986年 | 60篇 |
1985年 | 71篇 |
1984年 | 66篇 |
1983年 | 70篇 |
1982年 | 63篇 |
1981年 | 75篇 |
1980年 | 68篇 |
1979年 | 62篇 |
1978年 | 68篇 |
1977年 | 71篇 |
1976年 | 64篇 |
1975年 | 54篇 |
1974年 | 60篇 |
1968年 | 40篇 |
1966年 | 41篇 |
排序方式: 共有7330条查询结果,搜索用时 15 毫秒
41.
ABSTRACT Lamiell's (1981) “idiothetic” index has been praised for raising significant conceptual and methodological issues, but Paunonen and Jackson (1986a) indicated that it might not provide any unique information The current study demonstrates that the unique value of the idiothetic index relative to the ipsative, normative, and normative-ipsative indices is dependent in part upon what information is collected and how it is analyzed Subjects completed inventories on three occasions that assessed seven dispositional variables Interindividual analyses indicated a high correlation between the idiothetic method and two of the other models, whereas intra-individual analyses indicated a much lower degree of correlation Intra-individual analyses indicated that the idiothetic method produced higher temporal stability coefficients The idiothetic index provides information not contained in a normative index and it may be more useful to personality researchers for the assessment of temporal stability and for the assessment of traits with extreme base rates 相似文献
42.
Thomas T. Hewett 《Behavior research methods》1985,17(2):339-344
An electronic spreadsheet simulator can be used to enable students to conduct simulated microelectrode recording experiments. In addition, it can be used both to let students explore the operation of models of hypothetical neural networks and to let them design and develop their own neural models. 相似文献
43.
44.
45.
Thomas R. Alley 《Synthese》1985,65(3):411-444
The concept of an ecological niche (econiche) has been used in a variety of ways, some of which are incompatible with a relational or functional interpretation of the term. This essay seeks to standardize usage by limiting the concept to functional relations between organisms and their surroundings, and to revise the concept to include epistemic relations. For most organisms, epistemics are a vital aspect of their functional relationships to their surroundings and, hence, a major determinant of their econiche. Rejecting the traditional dualism of organism and environment, an econiche is defined as the reciprocal (dual) of a functionally specified class of organisms (FSTU). From this perspective, an econiche necessarily implies a certain type of organism, and a class of functionally similar organisms implies a special econiche.The econiche concept is also discussed in relation to other ecological terms that reflect the distributional patterns of organisms, such as habitat, and the concept of an empty niche is criticized.Special thanks are due to Michael Turvery for his part in many stimulating discussions of some of the problems and concepts addressed in this paper. I am also grateful to him and to Claudia Carello, Tim Johnston, Bill Mace, Bernard Patten, Ed Reed, Robert E. Shaw, Bill Warren, and an anonymous reviewer for their comments on earlier drafts of this paper. 相似文献
46.
Thomas H. Ollendick Greta Francis Kathleen J. Hart 《Journal of abnormal child psychology》1985,13(1):129-141
In this study, the relationship between two commonly used measures of social competency, peer ratings of perceived status and adult ratings of assertiveness, were examined. In Phase I, high and low sociometric status children were videotaped responding to a series of role-play scenes; performance on these scenes was then rated retrospectively by adults for overall assertiveness. In Phase II, a second group of children who were unfamiliar with the videotaped children observed the taped scenes and provided ratings of likability, intelligence, working together, and attractiveness. In general, results revealed that children and adults differed in their ratings of the videotaped children. Further, boys used different cues in their ratings than did girls. More specifically, the sociometric status of girls was related to perceived attractiveness, whereas the sociometric status of boys was more closely related to perceived intelligence. Such findings suggest that children and adults look for and use different cues in their judgments. Given these differences, it is concluded that child and adult ratings should not be used interchangeably in the assessment of, and evaluation of, social competency in children.Portions of this research were supported by a grant from the Virginia Department of Criminal Justice Services. 相似文献
47.
Work values and key influencers of a sample of black male and female adolescents were examined. Results indicated that boys and girls valued both the intrinsic and extrinsic rewards of work; however, girls reported slighter stronger extrinsic values than did boys. In addition, the sexes reported differences in the importance of specific work values such as "making lots of money," and "doing important things." When naming a key influencer, respondents tended to cite a same-sex and race individual. Sex of one's key influencer was related to certain work values, with subjects reporting a male key influencer valuing "trying out one's own ideas" and "having a secure future" more than those reporting a female key influencer. The interaction of sex of subject and sex of key influencer was significant on one of the work value outcomes. Implications of these findings are considered. 相似文献
48.
In 1985 we published a meta-analysis of gender differences across age in motor performance in Psychological Bulletin, but it did not include an indexing of each motor task to the references from which it was obtained. This paper provides a table listing the 20 motor tasks and the references from which data for each task were taken. The range of tasks was from fundamental movements (e.g., catching, jumping, running, throwing) to motor fitness (e.g., agility, arm hang, balance, grip strength) to perceptual-motor abilities (e.g., anticipation timing, fine eye-motor coordination, pursuit-rotor tracking, reaction time). The arm hang was represented in the fewest papers (n = 2) while the dash and long jump were most frequently referenced (n = 21). 相似文献
49.
50.
Charles Flicker Steven H. Ferris Thomas Crook Raymond T. Bartus 《Brain and language》1987,31(2):187-200
Young normals, elderly normals, and patients with either mild-to-moderate or severe senile dementia of the Alzheimer type (SDAT) were administered several tests of language function and remote memory. On all of the language tests examined, elderly normals exhibited a mild, nonsignificant performance decrement relative to the young normals. Advanced SDAT patients were markedly impaired on all of the tests. Early dementia patients were most impaired, relative to aged normals, on tests of object naming, category instance fluency, and remote memory. The deficit was smaller on the WAIS vocabulary subtest, on selecting the name of a visually presented object, and on recalling the function of an object. Early SDAT patients were least impaired in selecting the picture of an object after its name had been provided and in selecting objects that belong to a specified functional category. The results are consistent with the notion that the language dysfunction in early SDAT is due to a deficit in semantic memory function in which general, categorical information remains available whereas information about specific attributes becomes less accessible. The object naming test might be useful in the assessment of treatment effects upon SDAT because of its sensitivity and specificity to dementia, its high face validity, and its independence of recent memory. 相似文献