全文获取类型
收费全文 | 83779篇 |
免费 | 3384篇 |
国内免费 | 42篇 |
出版年
2020年 | 867篇 |
2019年 | 1069篇 |
2018年 | 1515篇 |
2017年 | 1508篇 |
2016年 | 1633篇 |
2015年 | 1146篇 |
2014年 | 1370篇 |
2013年 | 6710篇 |
2012年 | 2530篇 |
2011年 | 2646篇 |
2010年 | 1618篇 |
2009年 | 1593篇 |
2008年 | 2410篇 |
2007年 | 2384篇 |
2006年 | 2078篇 |
2005年 | 1938篇 |
2004年 | 1867篇 |
2003年 | 1704篇 |
2002年 | 1755篇 |
2001年 | 2691篇 |
2000年 | 2533篇 |
1999年 | 1945篇 |
1998年 | 985篇 |
1997年 | 866篇 |
1996年 | 800篇 |
1993年 | 781篇 |
1992年 | 1689篇 |
1991年 | 1563篇 |
1990年 | 1580篇 |
1989年 | 1396篇 |
1988年 | 1359篇 |
1987年 | 1332篇 |
1986年 | 1375篇 |
1985年 | 1477篇 |
1984年 | 1158篇 |
1983年 | 1037篇 |
1982年 | 772篇 |
1979年 | 1203篇 |
1978年 | 855篇 |
1976年 | 805篇 |
1975年 | 1077篇 |
1974年 | 1161篇 |
1973年 | 1195篇 |
1972年 | 1065篇 |
1971年 | 970篇 |
1970年 | 925篇 |
1969年 | 905篇 |
1968年 | 1175篇 |
1967年 | 1098篇 |
1966年 | 981篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
Greg Valcante Wynelle Roberson William R. Reid William D. Wolking 《Journal of applied behavior analysis》1989,22(1):43-55
We investigated the influence of teacher wait-time and intertrial interval durations on the performance of 4 multiply handicapped students during instruction in 10 skills. Four experimental conditions were evaluated: long wait-time and long intertrial interval, long wait-time and short intertrial interval, short wait-time and long intertrial interval, and short wait-time and short intertrial interval. Instructors attempted to keep short intervals as close as possible to 1 s and long intervals as close as possible to 10 s for both variables. Results showed that student performance was superior under the long wait-time conditions irrespective of the length of the intertrial interval. 相似文献
952.
Melvin Williams Bruce A. Thyer Jon S. Bailey Dianne F. Harrison 《Journal of applied behavior analysis》1989,22(1):71-76
Two studies were conducted examining the stimulus-control effects of conventional traffic signs as prompts for motor vehicle driver safety belt use. Following pilot research which suggested that a traffic sign reading “Fasten Safety Belt” posted at a parking lot exit was effective in producing small increases in safety belt use, Study I demonstrated the superiority of having human prompters display such signs compared to simply posting the signs. Study II replicated the findings of Study I and found that posted signs became more effective in prompting safety belt use if simple posting was preceded by a period involving human prompters who displayed the signs. The results bear upon the development of more effective use of traffic signs in promoting safety belt use and in viewing such use as an instance of rule-governed behavior. 相似文献
953.
Observing responses of college students and children of different ages (4 to 5, 9 to 10, and 13 to 14 years) were studied using two-component schedules of reinforcement. Different frequencies or numbers of points were given in the components and points were backed by either money or instructions about getting points (e.g., “points are for the experimenter's information only”). Stimuli that were either correlated or uncorrelated with the components were contingent on presses on either of two concurrently available levers (observing responses). In each of three experiments, preferences for stimuli were consistent with the conditioned-reinforcement hypothesis of observing but inconsistent with the uncertainty-reduction hypothesis. Stimulus preferences were established, eliminated, or reversed by instructions about the significance of getting points not backed with money. Instructions to in effect ignore points with no monetary value eliminated stimulus preference provided that money was not associated with points in other conditions for the same subjects. Stimulus preferences were otherwise independent of monetary point value. Instructions that described reinforcement contingencies promoted more rapid adjustment to the contingencies than occurred without them, and preferences were less variable across sessions within subjects and were on the average more extreme. Although some results involving absolute rates of observing depended upon the age of subjects, stimulus preferences did not. The data suggest that the conditioned-reinforcement hypothesis of observing has considerable generality for humans in choice procedures in the laboratory. That monetary value of points did not affect preferences in a graded fashion is consistent with versions of the conditioned-reinforcement hypothesis which emphasize reduction in delay to reinforcement over other reinforcement parameters. 相似文献
954.
955.
David M Schweiger Carl R Anderson Edwin A Locke 《Organizational behavior and human decision processes》1985,36(2):245-272
Two studies using a computer-simulated, strategy-formulation game and business students were conducted using simultaneous verbal protocols. It was found that a number of information-processing and information-evaluation thought processes were significantly related to game performance. Consistent with what is known about individual decision making, the present results suggest that, for the task used in this study, individuals who engage in causal analysis perform better than those who do not. But those who focus on negative emotions, blindly repeat previously successful decisions, and engage in illogical through processes perform more poorly than those who do not. Causal replication using real managers within organizational settings, however, is needed before firm conclusions can be drawn from this research. 相似文献
956.
Sheryl R. Young 《Behavior research methods》1985,17(2):286-293
Information is provided on the process of creating psychological simulations using LISP. A simulation is described, and the difference between progamming and simulation and “normal” programming is also provided, along with programming and debugging tips. 相似文献
957.
958.
959.
960.