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排序方式: 共有58条查询结果,搜索用时 15 毫秒
1.
Nonparametric post hoc comparisons for trend 总被引:1,自引:0,他引:1
2.
Contrast and undermatching as a function of reinforcer duration and quality during multiple schedules 总被引:1,自引:1,他引:0 下载免费PDF全文
Ettinger RH McSweeney FK Norman WD 《Journal of the experimental analysis of behavior》1981,35(3):271-282
Eight pigeons pecked keys under multiple variable-interval two-minute variable-interval two-minute schedules. In Experiment 1, the reinforcers were 2, 4, or 8 seconds access to a food magazine. In Experiments 2 and 3, the reinforcers were grains that had been determined to be most-, moderately-, or non-preferred. Both positive and negative behavioral contrast occurred when the reinforcers in one component were held constant and the duration or type of reinforcer obtained in the other component varied. Undermatching occurred when the relative rate of responding during a component was plotted as a function of the relative duration of the reinforcers in that component. 相似文献
3.
Philosophical Studies - A basic way of evaluating metaphysical theories is to ask whether they give satisfying (not necessarily truthful!) answers to the questions they set out to resolve. I... 相似文献
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We examined participation by women in journals devoted to social, developmental, cognitive, and general psychology. Authorship and first authorship by women increased from 1978 to 1997 for most journals. Participation by women on the editorial staff did not keep pace with their increased authorship for social and developmental psychology. Based on these trends, women's participation decreased with increases in the selectivity of the position for social and developmental psychology (a glass ceiling). The development of a glass ceiling suggests that the contributions of men and women are not always treated equally (gender inequity). Because a similar glass ceiling was reported for journals in behavior analysis (McSweeney, Donahoe, & Swindell, 2000; McSweeney & Swindell, 1998), the causes of this inequity appear to be relatively widespread. The failure to find a glass ceiling for general and cognitive psychology suggests that the inequity might be reduced by subtle pressure for diversity in editorial positions and by adopting actions that encourage women to pursue research positions. 相似文献
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McSweeney F Weatherly J Swindell S 《Journal of the experimental analysis of behavior》1996,66(1):75-95
Five rats and 4 pigeons responded for food delivered by several concurrent variable-interval schedules. The sum of the rates of reinforcement programmed for the two components varied from 15 to 480 reinforcers per hour in different conditions. Rates of responding usually changed within the experimental session in a similar manner for the two components of each concurrent schedule. The within-session changes were similar to previously reported changes during simple schedules that provided rates of reinforcement equal to the sum of all reinforcers obtained from the concurrent schedules. The number of changeovers also changed within sessions in a manner similar to the changes in instrumental responding. These results suggest that changeovers are governed by the same variables that govern instrumental responding. They also suggest that the within-session change in responding during each component of a concurrent schedule is determined by approximately the sum of the reinforcers obtained from both components when both components provide the same type of reinforcer. 相似文献
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Philosophical Studies - Logical realism is the view that there is logical structure in the world. I argue that, if logical realism is true, then we are deeply ignorant of that logical structure:... 相似文献
9.
Sung-Yeon Park Gi Woong Yun Jacqueline Hitchon McSweeney Albert C. Gunther 《Sex roles》2007,57(7-8):569-578
This study investigated the pluralistic ignorance on the norm of ideal female thinness and also the presumed influence of
thin idealized media images as the cause of the misperception. A survey of 111 female and 109 male US undergraduate students
revealed that both women and men overestimated the thinness of body type preferred by others. In addition, men reported that
others would be more affected by the media than self while women considered themselves to be as vulnerable as others. Subsequent
regression analyses demonstrated that the difference in the perceived media influence on self and others was a significant
predictor of the norm of ideal female thinness. Similar misperceptions were also found between men and women in dating relationships. 相似文献
10.
Sensitization and habituation regulate reinforcer effectiveness 总被引:1,自引:1,他引:0
We argue that sensitization and habituation occur to the sensory properties of reinforcers when those reinforcers are presented repeatedly or for a prolonged time. Sensitization increases, and habituation decreases, the ability of a reinforcer to control behavior. Supporting this argument, the rate of operant responding changes systematically within experimental sessions even when the programmed rate of reinforcement is held constant across the session. These within-session changes in operant responding are produced by repeated delivery of the reinforcer, and their empirical characteristics correspond to the characteristics of behavior undergoing sensitization and habituation. Two characteristics of habituation (dishabituation, stimulus specificity) are particularly useful in separating habituation from alternative explanations. Arguing that habituation occurs to reinforcers expands the domain of habituation. The argument implies that habituation occurs to biologically important, not just to neutral, stimuli. The argument also implies that habituation may be observed in “voluntary” (operant), not just in reflexive, behavior. Expanding the domain of habituation has important implications for understanding operant and classical conditioning. Habituation may also contribute to the regulation of motivated behaviors. Habituation provides a more accurate and a less cumbersome explanation for motivated behaviors than homeostasis. Habituation also has some surprising, and easily testable, implications for the control of motivated behaviors. 相似文献