全文获取类型
收费全文 | 44585篇 |
免费 | 1113篇 |
国内免费 | 16篇 |
出版年
2020年 | 323篇 |
2019年 | 379篇 |
2018年 | 3877篇 |
2017年 | 3236篇 |
2016年 | 2739篇 |
2015年 | 614篇 |
2014年 | 570篇 |
2013年 | 2254篇 |
2012年 | 1407篇 |
2011年 | 3244篇 |
2010年 | 3006篇 |
2009年 | 1978篇 |
2008年 | 2415篇 |
2007年 | 2833篇 |
2006年 | 681篇 |
2005年 | 786篇 |
2004年 | 756篇 |
2003年 | 655篇 |
2002年 | 652篇 |
2001年 | 828篇 |
2000年 | 843篇 |
1999年 | 599篇 |
1998年 | 332篇 |
1997年 | 310篇 |
1996年 | 256篇 |
1995年 | 263篇 |
1994年 | 225篇 |
1993年 | 235篇 |
1992年 | 462篇 |
1991年 | 417篇 |
1990年 | 437篇 |
1989年 | 415篇 |
1988年 | 381篇 |
1987年 | 352篇 |
1986年 | 377篇 |
1985年 | 382篇 |
1984年 | 340篇 |
1983年 | 319篇 |
1982年 | 230篇 |
1981年 | 269篇 |
1979年 | 305篇 |
1978年 | 280篇 |
1977年 | 243篇 |
1976年 | 227篇 |
1975年 | 289篇 |
1974年 | 344篇 |
1973年 | 263篇 |
1972年 | 266篇 |
1969年 | 253篇 |
1968年 | 247篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
The distribution of males and females on a job, occupational classification, and job content as defined by the DOT analysis of job activity demands were examined as predictors of job sex stereotypes in two studies. Results indicate that the actual base rate of males and females in the job is the most important predictor of job sextypes, accounting for 48 and 70% of the adjusted variance in sextypes in the two studies. The results lend little support to the proposition that job content makes a significant contribution to the perception of job sextypes. 相似文献
962.
In a dichotic listening situation stimuli were presented one at a time and at random to either ear of the subject at constant inter-stimulus intervals of 800 msec. The subject's task was to detect and count occasional slightly different stimuli in one ear. In Experiment 1, these ‘signal’ stimuli were slightly louder, and in Experiment 2 they had a slightly higher pitch, than the much more frequent, ‘standard’, stimuli. In both experiments signals occured randomly at either ear. Separate evoked potentials from three different locations were recorded for each of the four kinds of stimuli (attended signals, unattended signals, attended standards, unattended standards). Contrary to Hillyard et al. (1973), no early (N1 component) evoked-potential enhancement was observed to stimuli to the attended ear as compared with those to the unattended ear, but there was a later negative shift superimposed on potentials elicited by the former stimuli. This negative shift was considered identical to the N1 enhancement of Hillyard and his colleagues which in the present study was forced, by the longer inter-stimulus interval used, to demonstrate temporal dissociation with the N1 component. The ‘Hillyard effect’ was, consequently, explained as being caused by a superimposition of a CNV kind of negative shift on the evoked potential to the attended stimuli rather than by a growth of the ‘real’ N1 component of the evoked potential. 相似文献
963.
Lane has argued that kantowitz and Knight incorrectly predicted an interaction between primary and secondary task difficulty for the variable-allocation model of attention. It is shown that such an interaction is indeed obtained if task-performance difficulty is defined in terms of capacity and only reasonable transformations of data are permitted. This interaction holds for any set of monotonic resource operating characteristics. 相似文献
964.
This study sought (1) to compare the relative predictive powers of job attachment and job satisfaction with respect to turnover among a sample of public employees; and (2) to examine individual and job-related influences on both attitudes. It was found that attachment was a more effective predictor of turnover than overall satisfaction (or any facet of satisfaction), even when the alternative attitude was partialled out. In addition, it was found that individual employee characteristics were more strongly related to attachment than were job characteristics, while the opposite was found for satisfaction. The findings are discussed in the light of previous evidence, and implications are drawn for research in vocational behavior. 相似文献
965.
966.
967.
Daniel L. Roenker Steven K. Wenger Charles P. Thompson Brian Watkins 《Memory & cognition》1978,6(3):288-295
Two factors, level of processing (Craik & Lockhart, 1972) and congruity (Schulman, 1974), known to have large effects on the recall of experimenter-provided responses to questions, were examined in a series of five incidental learning experiments using subject-generated responses. The data show that manipulation of level of processing has the same effect on recall of subjectgenerated responses as it does on experimenter-provided responses. However, the effect of congruity is reversed for subject-generated responses. The data suggest that the difficulty of generating unrelated responses (“incongruous“ items) may account, at least in part, for the failure of the “principle of congruity“ with subject-generated responses. 相似文献
968.
Sharon L. James 《Journal of psycholinguistic research》1978,7(4):307-317
Twenty-one children between the ages of 46 and 52 years made a speaker doll address other dolls that represented an adult, a peer, and a younger listener in command and request situations. Analyses of the politeness of the elicited directives revealed that the effect of the listener's age was greatest in the command situations,with the adult listener receiving the politest directives, followed by the peer and the younger child, respectively. The listener age effect diminished in the request situations, where the child had to ask a favor of the listener. In these situations, the children were very polite to all three listeners. The results are discussed in terms of status relationships between the speaker and the listener.This article is taken from a doctoral dissertation completed at the University of Wisconsin, Madison, under the direction of D. K. Vetter. 相似文献
969.
970.
The methodology and results of a recent investigation by Louks, Freeman, and Calsyn (1978) are reviewed. It is demonstrated that the results may have been confounded by inappropriate experimental procedures. Regardless of the methodological deficiencies associated with the experimental procedures, the results do not provide adequate support for the continued differentiation of individual low back pain patients with respect to the etiology of their pain. It is suggested that psychologists may best contribute to the assessment and treatment of individual pain patients by developing actuarial rules regarding the pain-related behavioral characteristics shared by members of various patient subgroups and the specific treatments to which subgroup members best respond. 相似文献