全文获取类型
收费全文 | 32984篇 |
免费 | 588篇 |
国内免费 | 3篇 |
专业分类
33575篇 |
出版年
2020年 | 350篇 |
2019年 | 353篇 |
2018年 | 458篇 |
2017年 | 491篇 |
2016年 | 583篇 |
2015年 | 446篇 |
2014年 | 521篇 |
2013年 | 2457篇 |
2012年 | 944篇 |
2011年 | 957篇 |
2010年 | 617篇 |
2009年 | 610篇 |
2008年 | 872篇 |
2007年 | 821篇 |
2006年 | 715篇 |
2005年 | 722篇 |
2004年 | 674篇 |
2003年 | 662篇 |
2002年 | 683篇 |
2001年 | 808篇 |
2000年 | 752篇 |
1999年 | 581篇 |
1998年 | 343篇 |
1997年 | 330篇 |
1992年 | 553篇 |
1991年 | 543篇 |
1990年 | 525篇 |
1989年 | 501篇 |
1988年 | 456篇 |
1987年 | 473篇 |
1986年 | 501篇 |
1985年 | 550篇 |
1984年 | 475篇 |
1983年 | 442篇 |
1982年 | 331篇 |
1981年 | 383篇 |
1979年 | 497篇 |
1978年 | 377篇 |
1977年 | 345篇 |
1976年 | 329篇 |
1975年 | 460篇 |
1974年 | 518篇 |
1973年 | 524篇 |
1972年 | 434篇 |
1971年 | 431篇 |
1970年 | 403篇 |
1969年 | 424篇 |
1968年 | 530篇 |
1967年 | 500篇 |
1966年 | 491篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
181.
Previous research has found mixed support for the possibility that locus of control moderates the effects of life stress on depression. Two methodological choices may have influenced previous findings: the use of a unidimensional rather than a multidimensional locus of control scale, and reliance on linear statistical methods using median splits. We attempted to correct these choices by using the Levenson IPC scale (1974) and multiple regression analyses in a female undergraduate population (N = 158). The results supported use of a multidimensional scale, since Stress, Internality, and Powerful Others were found to have main effects on depression whereas Chance interacted with life stress. The question of whether locus of control refers to responsibility for causing an event, i.e., self-blame, or belief in control over future events, i.e., coping behavior, was discussed. 相似文献
182.
Figure drawings obtained from 758 white male medical students were scored using three different methods. Method I involved 16 different physical size measurements; Method II involved six separate sophistication of body concept ratings; and Method III involved 42 separate aspects of the drawings weighted in direct proportion to their relative frequency of occurrence in the sample studied (conventionality scoring). Separate factor analyses of the scores derived from each method revealed that Methods I and II each reflect only a single underlying factor, and that these factors are uncorrelated in the population studied. Method III yielded eight meaningful factors, each of which may be construed as an independent area of conventionality/deviancy. An overall conventionality/deviancy score was also derived. It is believed that these three methods of scoring capture most of the variance inherent in existing figure drawing scoring systems, but that use of all three is necessary for a comprehensive analysis. 相似文献
183.
It has been proposed that the law of non-contradiction be revised to permit the simultaneous truth and falsity of the key sentences of the logical paradoxes, e.g., This sentence is false. In an attempt to show to what extent this bizarre suggestion of inconsistent models or truth-value gluts is a coherent suggestion it is proved that a first-order language for number theory can be semantically closed by having its own global truth predicate under some non-standard interpretation and thus that it actually can contain the Liar sentence. It is proved that in this interpretation the Liar sentence is both true and false, although not every sentence is. 相似文献
184.
An instrument was designed to assist mental health professionals in objectively assessing competence to stand trial. Items were empirically derived based on input from multidisciplinary teams of mental health professionals experienced in working with forensic patients in a state hospital. Procedures were adapted from Goldfried and D'Zurella's five-stage behavioral-analytic model for the assessment of social competence. The resulting 15-item audiotaped scale assessed both legal and social competence based on reported responding in jail, in interactions with lawyers, and in the courtroom. Interrater reliability on scoring of responses ranged from .68–.96. High correlations between social and legal competence (.56–.82) demonstrated the likelihood of overlap of these constructs and the importance of directly addressing both. A pilot intervention program was designed from the instrument and implemented with three forensic patients. Failure to demonstrate change in these subjects is briefly discussed, and recommendations for future efforts in this area are made. 相似文献
185.
186.
Bonnie B. Vermilyea David H. Barlow Gerald T. O'Brien 《Journal of psychopathology and behavioral assessment》1984,6(1):1-11
One purpose of this investigation was to examine the importance of assessing treatment integrity in a study evaluating a treatment for specific anxiety disorders. Three subjects, two social phobics and one simple phobic, received self-instruction training (Phase I) followed by exposure and self-instruction training (Phase II) in a multiple baseline across subjects design. All subjects were assessed during a pretreatment baseline and throughout treatment using measures of treatment integrity and measures of change in phobic severity. Improvement took place at different times for different subjects. Measures of treatment integrity, which consisted of monitoring of self-statements as well as practice outside the session, indicated that treatment was not always received as intended and that improvement was correlated with practice. The usefulness of measures of treatment integrity in both clinical and research settings is highlighted. 相似文献
187.
188.
Kinetic subjective contours 总被引:2,自引:0,他引:2
189.
This study was designed to determine possible differences in the cognitive, perceptual, and personal-social development of prematurely and maturely born 3-yr.-olds which might foreshadow later learning problems. The subjects were 40 prematurely born graduates of a neonatal intensive care unit (birth weight less than 2,500 gm, less than 37 wk. gestation) matched on the pair-level with full-term controls on sex, race, post-conceptual age, and socioeconomic background. All subjects were singletons and parity was matched at the group level. No differences were found between the groups on tests of higher mental processes including the General Cognitive, Verbal, Quantitative, and Memory Scales of the McCarthy Scales of Children's Abilities, and researcher-devised measures of problem-solving competence. No differences in parental reports of personal-social development were noted. Prematures did not perform as well as controls on perceptual performance tasks, and this difference was interpreted as reflecting relatively impaired visual-motor coordination. 相似文献
190.
Motoric change subsequent to therapeutic intervention in infants and young children who have cerebral palsy: annotated listing of group studies 总被引:1,自引:0,他引:1
This annotated listing is of group reports pertaining to therapeutic strategies utilized with infants and young children who have cerebral palsy. The studies are organized by type of design used. 相似文献