全文获取类型
收费全文 | 2322篇 |
免费 | 79篇 |
国内免费 | 1篇 |
专业分类
2402篇 |
出版年
2021年 | 20篇 |
2020年 | 21篇 |
2019年 | 31篇 |
2018年 | 38篇 |
2017年 | 45篇 |
2016年 | 36篇 |
2015年 | 29篇 |
2014年 | 58篇 |
2013年 | 206篇 |
2012年 | 70篇 |
2011年 | 92篇 |
2010年 | 53篇 |
2009年 | 68篇 |
2008年 | 69篇 |
2007年 | 72篇 |
2006年 | 75篇 |
2005年 | 71篇 |
2004年 | 74篇 |
2003年 | 57篇 |
2002年 | 70篇 |
2001年 | 27篇 |
2000年 | 32篇 |
1999年 | 39篇 |
1998年 | 42篇 |
1997年 | 34篇 |
1996年 | 29篇 |
1995年 | 31篇 |
1994年 | 28篇 |
1993年 | 30篇 |
1992年 | 37篇 |
1991年 | 24篇 |
1990年 | 26篇 |
1989年 | 24篇 |
1988年 | 28篇 |
1987年 | 24篇 |
1986年 | 24篇 |
1985年 | 38篇 |
1984年 | 39篇 |
1983年 | 21篇 |
1982年 | 29篇 |
1981年 | 45篇 |
1980年 | 40篇 |
1979年 | 27篇 |
1978年 | 51篇 |
1977年 | 43篇 |
1976年 | 27篇 |
1975年 | 47篇 |
1974年 | 37篇 |
1973年 | 33篇 |
1972年 | 18篇 |
排序方式: 共有2402条查询结果,搜索用时 15 毫秒
961.
962.
Edward A. Wasserman James D. Deich Norman B. Hunter Linda S. Nagamatsu 《Learning and motivation》1977,8(4):467-487
A series of five experiments using a total of 264 subjects investigated the effects of paired and unpaired key light (CS) and heat (US) stimuli on autoshaping the chick's key peck. Experiment 1 established that paired presentations of CS and US promoted a more rapid rise in key pecking than did randomly presented CSs and USs and that the specific sequence of stimuli under the random control procedure affected key pecking performance. Experiment 2 used a trace conditioning procedure to determine the role of the CS-US interval on autoshaping and to define empirically unpaired CSs and USs. Key pecking declined as the trace delay interval was increased from 0 to 25 sec; at 25 sec, no conditioning of key pecking occurred. Experiments 3–5 assessed the effects on autoshaped key pecking of (a) number of daily CS-US pairings, (b) added unpaired CS presentations, and (c) added unpaired US presentations, since paired and random control schedules differed in all of these respects. Reduction in the number of CS-US pairings slowed the acquisition of key pecking as did the concurrent addition of nonreinforced CSs and unsignaled USs. These results support theories of association formation that stress the effects of both paired and unpaired CSs and USs. 相似文献
963.
Subjects were given an unexpected frequency judgment test following a list of words in which items were presented either two, three, and five times or three, five, and seven times, with a spacing of 0, 2, 16, or 32 items between repetitions. During list presentation, they either rated the imagery value of each word or made continuous frequency estimates. Postlist frequency judgments of words presented three and five times were higher for the list containing words of Frequency 7, and judgments were also higher following the imagery rating task. Continuous judgments were unaffected by the list context and showed different effects of spacing than postlist judgments. The results provide support for the operation of response bias factors in the frequency judgment task and are relevant to theoretical interpretations of the spacing effect. 相似文献
964.
The present experiment attempted to reconcile previous results in the area of humor and aggression. It was hypothesized that humor serves two functions, arousal and attentional shift, with regard to its influence on the relation of prior anger arousal and aggression. As a test of this assumption, subjects in the present experiment were subjected to three forms of humor (high arousing, low arousing, nonhumor) after being angered or treated in a neutral manner by a confederate. In an analysis on subsequent aggression toward the confederate, it was found that female subjects reduced their aggression after exposure to low arousing humor while maintaining aggression at a high level for high arousing stimuli. Male subjects were not influenced by humor exposure. Possible reasons for this sex difference are examined in light of the arousal and attentional shift properties of humorous stimuli. 相似文献
965.
966.
Simulated supervisory responses to different patterns of absence were examined in a 2×2×2 factorial experiment. Annual employee absence records were varied in terms of frequency of absence, when in the year absences occurred (timing) and the mean time between absences. The responses of 73 raters to these records were evaluated in terms of perceived intentions of the employee, perceived impact on the company and raters' intentions to act. The results cast doubts on the role of attributions of intentionality as a mediator between absences and supervisory action. A three-way interaction on supervisor action suggests a three stage model in which frequency has the dominant effect, followed by timing and mean time between absences. 相似文献
967.
Stephen G. Glasscock Michael A. Rapoff Edward R. Christophersen 《Journal of business and psychology》1988,2(3):272-278
Shoplifting is a serious crime affecting most (if not all) retail businesses and responsible for increases in merchandise prices and customer services. Numerous methods exist to reduce shoplifting among consumers. The two most common types of shoplifting treatments either directly treat the shoplifter or attempt to prevent shoplifting through response prevention strategies in the retail environment. A critical review of the most common methods to reduce shoplifting reveal that case study research lacks appropriate experimental control to be convincing; and that the most promising strategies are those methods that attempt to prevent shoplifting in the retail environment. However, the more global response prevention methods could benefit if an account of the total volume of shoppers were controlled for thus providing a ratio of shoppers to opportunities to shoplift. 相似文献
968.
Edward L. Levine Francis Sistrunk Kathryn J. McNutt Sidney Gael 《Journal of business and psychology》1988,3(1):3-21
Job analysis is an important aspect of human resource management. This study was conceived to further our understanding of how job analysis may best be used to enhance the variety of human resource management activities that rely on it. Nine geographically dispersed organizations, carefully selected on the basis of their exemplary job analysis functions, were each visited and their job analysis functions studied for a period ranging from one to three days. These organizations represented a wide range of industries. We found that job analysis functions are typically highly centralized and part or all of these functions are often housed in a unit dealing with compensation. The idea of a fully integrated personnel system based on a comprehensive job analysis data base is not quite ready for widespread adoption. However, a multipurpose approach, designed to serve several applications, is feasible to develop. Little progress has been made in estimating the costs of job analysis functions. Rudimentary cost estimates prepared by us on anad hoc basis revealed that the annual costs for job analysis functions ranged from $150,000 to $4,000,000 with a median of$280,000. 相似文献
969.
970.
Sixty-hertz raster scan monitors provide relatively inexpensive solutions to problems associated with presenting complex visual stimuli. However, they restrict the user to displays in which stimulus characteristics cannot be changed more often than once every 16.67 msec. Calligraphic monitors allow very high frame rates, but not the generation of complex or chromatic images (unless very expensive monitors are purchased). A method is reported for increasing the frame rate of some raster monitors at the expense of the number of lines that are painted. Also, data relating to the influence of such a modification on visual performance is presented. 相似文献