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131.
THE EFFECT OF CHANGES IN CRITERION VALUE ON DIFFERENTIAL REINFORCEMENT OF LOW RATE SCHEDULE PERFORMANCE 下载免费PDF全文
Matthew J. Pizzo Kimberly Kirkpatrick Pamela J. Blundell 《Journal of the experimental analysis of behavior》2009,92(2):181-198
The differential reinforcement of low rate (DRL) schedule is commonly used to assess impulsivity, hyperactivity, and the cognitive effects of pharmacological treatments on performance. A DRL schedule requires subjects to wait a certain minimum amount of time between successive responses to receive reinforcement. The DRL criterion value, which specifies the minimum wait time between responses, is often shifted towards increasingly longer values over the course of training. However, the process invoked by shifting DRL values is poorly understood. Experiment 1 compared performance on a DRL 30‐s schedule versus a DRL 15‐s schedule that was later shifted to a DRL 30‐s schedule. Dependent measures assessing interresponse time (IRT) production and reward‐earning efficiency showed significant detrimental effects following a DRL schedule transition in comparison with the performance on a maintained DRL 30‐s schedule. Experiments 2a and 2b assessed the effects of small incremental changes vs. a sudden large shift in the DRL criterion on performance. The incremental changes produced little to no disruption in performance compared to a sudden large shift. The results indicate that the common practice of incrementing the DRL criterion over sessions may be an inefficient means of training stable DRL performance. 相似文献
132.
Kathleen C. Basile Dorothy L. Espelage Ian Rivers Pamela M. McMahon Thomas R. Simon 《Aggression and violent behavior》2009,14(5):336-347
Bullying experiences and male sexual violence (SV) perpetration are major public health problems, and while extant literature suggests that they may share some developmental correlates, there is no established empirical link between being a perpetrator or victim of bullying and SV perpetration in the literature. Nonetheless, some SV prevention programs in the U.S. include bullying prevention components for elementary and middle-school aged children. Research is needed to test the hypothesized links between bullying experiences and SV perpetration to determine whether bullying prevention programs are likely to prevent SV perpetration. The purpose of this paper is to present results from a review of research on each of these topics and to discuss the potential shared and unique risk and protective factors within a social-ecological framework. The paper concludes with suggested directions for future research. 相似文献
133.
The claim that specific discrete emotions can be universally recognized from human facial expressions is based mainly on the study of expressions that were posed. The current study (N=50) examined recognition of emotion from 20 spontaneous expressions from Papua New Guinea photographed, coded, and labeled by P. Ekman (1980). For the 16 faces with a single predicted label, endorsement of that label ranged from 4.2% to 45.8% (mean 24.2%). For 4 faces with 2 predicted labels (blends), endorsement of one or the other ranged from 6.3% to 66.6% (mean 38.8%). Of the 24 labels Ekman predicted, 11 were endorsed at an above-chance level, and 13 were not. Spontaneous expressions do not achieve the level of recognition achieved by posed expressions. 相似文献
134.
Pamela Sue Anderson 《Philosophia》2007,35(3-4):361-370
This paper presents a feminist intervention into debates concerning the relation between human subjects and a divine ideal. I turn to what Irigarayan feminists challenge as a masculine conception of ‘the God’s eye view’ of reality. This ideal functions not only in philosophy of religion, but in ethics, politics, epistemology and philosophy of science: it is given various names from ‘the competent judge’ to the ‘the ideal observer’ (IO) whose view is either from nowhere or everywhere. The question is whether, as Taliaferro contends, my own philosophical argument inevitably appeals to the impartiality and omni-attributes of the IO. This paper was delivered during the APA Pacific 2007 Mini-Conference on Models of God. 相似文献
135.
Edwards MC Gardner ES Chelonis JJ Schulz EG Flake RA Diaz PF 《Journal of abnormal child psychology》2007,35(3):393-404
This study evaluated the validity and classification utility of the Conners' Continuous Performance Test (CCPT) in the assessment of inattentive and hyperactive-impulsive behaviors in children. Significant, positive correlations between the CCPT parameters and behavioral ratings of ADHD behaviors were hypothesized. In addition, it was hypothesized that the CCPT parameters would perform better than a random test (chance) and show fair to moderate utility of classification across the different indices. Participants were 104 children between 6 and 12 years of age who were referred for evaluation of attention problems. The first hypothesis was not supported. There were no significant, positive correlations between the CCPT parameters and parent and teacher ratings of inattentive and hyperactive-impulsive behaviors. The second hypothesis was only partially supported. The CCPT Overall Index and the Omission Errors (84th percentile cutoff) performed better than a random test; however, the utility of the CCPT Overall Index only ranged from poor to slight. Receiver operating characteristic analyses showed the accuracy of the CCPT to be low. The implications and limitations of this study and future research directions are discussed. 相似文献
136.
The present study explores the relation between academic self-concept, self-esteem, and aggression at school. Longitudinal data from a racially diverse sample of middle-school students were analyzed to explore how academic self-concept influenced the likelihood of aggressing at school and whether high self-concept exerted a different pattern of influence when threatened. Data include self-reported academic self-concept, school-reported academic performance, and parent-reported school discipline. Results suggest that, in general, students with low self-concept in achievement domains are more likely to aggress at school than those with high self-concept. However, there is a small sample of youth who, when they receive contradictory information that threatens their reported self-concept, do aggress. Global self-esteem was not found to be predictive of aggression. These results are discussed in the context of recent debates on whether self-esteem is a predictor of aggression and the use of a more proximal vs. general self-measure in examining the self-esteem and aggression relation. 相似文献
137.
While there is an extensive literature on gender differences in body image, little has focused on ethnic group differences in men's body image. College students ( N = 466) from a prestigious New England university indicated their current and ideal figures. Compared to Caucasians (N = 289), Asians (N = 92) reported smaller current figures. Both Caucasian and Asian women rated their current figure as larger than their ideal. Caucasian males reported no discrepancy between their current and ideal figures. However, Asian males rated their current figures as smaller than ideal. The effect of ethnicity on body satisfaction depended upon gender. For women, the ideal was thinner than current figure regardless of actual size, producing a discrepancy between current and ideal figures for both Caucasian and Asian women. Conversely, Asian and Caucasian men identified a similar ideal, producing a discrepancy between current and ideal figures only for Asian men. 相似文献
138.
Catherine Campbell Pamela Gillies 《Journal of community & applied social psychology》2001,11(5):329-346
This paper reports on a micro‐qualitative case study of peoples' experiences of local community life in a south‐east English town. This material is used as the basis for a critical discussion of the suitability of Putnam's notion of social capital as a conceptual tool for the design and evaluation of ‘community strengthening’ policies and interventions. The study was motivated by a concern that too much debate about social capital has been conducted by academics and policy‐makers in a top‐down manner, with inadequate attention to the realities of life in the local communities that they refer to. Three‐hour semi‐structured interviews were conducted with 37 residents in two less affluent wards in our town of interest. Informants—half men and half women, and spread across the 15–75 age group—were encouraged to talk about their personal experiences of local community life. Interview findings are presented within the ‘norm’ categories of trust, neighbourliness and reciprocal help and support, and the ‘network’ categories of participation in informal networks, voluntary groupings and community activist groupings. Our case study points to a number of ways in which Putnam's concept needs to be refined if it is to inform ‘community strengthening’ policies and interventions in England. Far more notice needs to be taken of the role played by informal networks of friends and neighbours in the construction of local community life. Attention also needs to be given to the complex and shifting geographical spread of peoples' significant social networks. Putnam's conceptualization of cohesive local communities and his unitary notions of trust and local identity may also be unduly essentialist. In our particular communities of interest, they failed to capture the fluidity of local community norms and networks in a rapidly changing society. They also failed to do justice to the extent to which social distinctions—such as age, gender, ethnicity and housing tenure—shape and constrain the way in which people create, sustain and access social capital. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
139.
Dennis P. Bozeman Wayne A. Hochwarier Pamela L. Perrewe Robert A. Brymer 《Journal of applied social psychology》2001,31(3):486-503
This investigation examined the moderating influences of perceived control (i. e., personal control and job self‐efficacy) on relationships between perceptions of organizational politics and organizational commitment, job satisfaction, intention to turnover, and job stress. Although results failed to support predictions concerning the interaction of perceptions of organizational politics and personal control, some support was found for predictions concerning the interactive influence of perceptions of organizational politics and job self‐efficacy on outcomes. Data from 189 hotel managers supported the hypothesized interactive effects of perceptions of organizational politics and job self‐efficacy for the outcomes of organizational commitment and job satisfaction. These results suggest that job self‐efficacy exacerbates the relationship between perceived politics and certain dysfunctional attitudes. 相似文献
140.
Wayne A. Hochwarter Gerald R. Ferris Pamela L. Perrewé L. Alan Witt Christian Kiewitz 《Journal of applied social psychology》2001,31(6):1223-1237
Research assessing the relationship between age and job satisfaction has typically provided mixed results. Inherent problems including limited samples and a failure to control for tenure and affective disposition have potentially contributed to these conflicting results. Moreover, a significant concern has been researchers' focus on detecting linear effects alone. In the current study, we statistically controlled for gender, supervisor and position tenure, quadratic tenure terms, and affective disposition (NA and PA) based on previous research regarding the relationship between these variables and job satisfaction. Finally, we used hierarchical polynomial regression to assess the form of the age-satisfaction relationship. Results confirmed that a U shape best characterized the relationship between age and job satisfaction. Implications of these findings as well as directions for future research are discussed. 相似文献