全文获取类型
收费全文 | 36987篇 |
免费 | 666篇 |
国内免费 | 5篇 |
出版年
2019年 | 240篇 |
2018年 | 3680篇 |
2017年 | 3008篇 |
2016年 | 2482篇 |
2015年 | 380篇 |
2014年 | 351篇 |
2013年 | 1478篇 |
2012年 | 1026篇 |
2011年 | 2860篇 |
2010年 | 2764篇 |
2009年 | 1767篇 |
2008年 | 2101篇 |
2007年 | 2600篇 |
2006年 | 481篇 |
2005年 | 577篇 |
2004年 | 556篇 |
2003年 | 469篇 |
2002年 | 420篇 |
2001年 | 496篇 |
2000年 | 586篇 |
1999年 | 366篇 |
1998年 | 234篇 |
1997年 | 187篇 |
1996年 | 181篇 |
1995年 | 171篇 |
1994年 | 162篇 |
1992年 | 284篇 |
1991年 | 287篇 |
1990年 | 311篇 |
1989年 | 284篇 |
1988年 | 274篇 |
1987年 | 248篇 |
1986年 | 256篇 |
1985年 | 274篇 |
1984年 | 200篇 |
1983年 | 215篇 |
1982年 | 167篇 |
1980年 | 170篇 |
1979年 | 256篇 |
1978年 | 222篇 |
1975年 | 218篇 |
1974年 | 248篇 |
1973年 | 272篇 |
1972年 | 228篇 |
1971年 | 214篇 |
1970年 | 166篇 |
1969年 | 200篇 |
1968年 | 254篇 |
1967年 | 243篇 |
1966年 | 210篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
891.
Johann-Wolfgang-Goethe Unversität, Frankfurt am Main, West-Germany In single-trial free recall a superiority of acoustical over visual presentation has been observed in the recency part of the serial position curve. The rehearsal-buffer model by Atkinson and Shiffrin (1968) was modified to distinguish between three different explanations that are discussed in the literature. The application of the model allowed some of the parameters to vary across modes of presentation while other parameters were held constant. A model assuming either a precategorical acoustical storage or additional processing for visually presented items gives a better account of the results than does a model derived from a two-store hypothesis. 相似文献
892.
The perceptual complexity of lexically ambiguous and unambiguous sentences was compared in three experiments. In Experiment 1, the report of ambiguous words from rapidly presented ambiguous sentences was worse than the report of corresponding unambiguous words from unambiguous sentences. Results of Experiment 2 showed that the effect was not reduced by the presence of prior biasing context within the sentence. Experiment 3 repeated the finding with a sentence meaning classification task. It was concluded that both meanings of a lexically ambiguous sentence must be computed, even when prior context makes one meaning more plausible than the other. 相似文献
893.
A SKED-based facility for undergraduate instructional research has been operating for over a year. The two-computer approach, with one machine for programming and the other for running experiments, is used. Criteria for computerized undergraduate research laboratories, benefits of SKED, and the two-computer approach are discussed. 相似文献
894.
Procedures for observing, coding, and analyzing parent-infant interactions are described. Sample data are presented to illustrate the outcome of these procedures and the manner in which developmental issues can be addressed using the hardware and software systems described. 相似文献
895.
The activities of a group engaged in simulation modeling via computer conferencing are described, and the model which resulted from those activities is briefly outlined. The phenomena which were modeled were initially described in a series of studies by Trabasso and his colleagues. These studies centered upon exhibition of transitive choices by children and adults, and supported the hypothesis that the choices were guided by formation of “linear arrays“ of the choice objects. 相似文献
896.
Philip F. Spelt 《Behavior research methods》1977,9(2):87-91
A 20-day computer conference was held in preparation for a face-to-face meeting to produce a computer simulation. The conferencing resulted in the generation of seven different models and was excellent preparation for the subsequent meeting. Computer conferencing appears to hold great value for faculty development in a period of reduced faculty mobility. 相似文献
897.
Ronald A. Giannetti James H. Johnson Thomas A. Williams Charles F. McCusker 《Behavior research methods》1977,9(2):133-138
Current on-line assessment applications are limited to mimicking instruments designed for paper and pencil. The development of an instrument designed specifically for on-line technology is described. The instrument provides research data on treatment effectiveness, clinical information for treatment planning, and management information for resource allocation. 相似文献
898.
A series of experiments was carried out to determine the type of linguistic input used by profoundly prelinguistically deaf subjects who had acquired a phonological code which enabled them to match homophones and identify rhymes. The results indicated that the tasks were primarily done by using visual information from lipreading, and that the subjects did not rely greatly on similarities of written representation, lexical information, or motor feedback from the articulators to perform the phonological matching tasks. 相似文献
899.
Helen C. Franklin Dennis H. Holding 《Quarterly journal of experimental psychology (2006)》1977,29(3):527-532
Men and women aged between 25 and 75 were asked to associate personal experiences to a set of 50 randomly chosen common words. The dates of these experiences were reconstructed and plotted as frequency distributions. Neither sex differences nor introversion--extraversion had reliable effects, and response latencies did not differ between conditions, but age differences significantly affected the memory distributions. Contrary to the hypothesis that ageing produces a selective deficit for recency, it appears that the average date of remembered events tends to increase with age. 相似文献
900.
Michael F. Dorman Diane Kewley-Port Susan Brady M. T. Turvey 《Quarterly journal of experimental psychology (2006)》1977,29(3):483-497
The recognition of brief vowels was studied in forward and backward masking tasks. In a series of experiments in which both target and mask parameters were systematically varied, two populations of subjects were identified. The majority (Nonmaskers) evidenced little masking at any interstimulus interval, while relatively fewer subjects (Maskers) evidenced backward masking (but not forward masking) over a 100-200 ms interval. Increasing target set size systematically increased masking for the Maskers but not for the Nonmaskers. Adding white noise to the targets increased the extent of masking for both groups. These results suggest (1) that masking does not impose a substantive constraint on vowel perception in running speech, and (2) that multiple strategies may exist for vowel recognition. 相似文献