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41.
Pothos EM Edwards DJ Perlman A 《Quarterly journal of experimental psychology (2006)》2011,64(9):1692-1713
Supervised and unsupervised categorization have been studied in separate research traditions. A handful of studies have attempted to explore a possible convergence between the two. The present research builds on these studies, by comparing the unsupervised categorization results of Pothos et al. ( 2011 ; Pothos et al., 2008 ) with the results from two procedures of supervised categorization. In two experiments, we tested 375 participants with nine different stimulus sets and examined the relation between ease of learning of a classification, memory for a classification, and spontaneous preference for a classification. After taking into account the role of the number of category labels (clusters) in supervised learning, we found the three variables to be closely associated with each other. Our results provide encouragement for researchers seeking unified theoretical explanations for supervised and unsupervised categorization, but raise a range of challenging theoretical questions. 相似文献
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Analyzing Additional Variables in the Theory of Reasoned Action 总被引:1,自引:0,他引:1
Darren Langdridge Paschal Sheeran Kevin J. Connolly 《Journal of applied social psychology》2007,37(8):1884-1913
This study examined the convergent, discriminant, and predictive validity of several variables proposed to augment the theory of reasoned action (TRA), using both principal components analysis (PCA)/multiple regression and confirmatory factor analysis (CFA)/structural equation modeling (SEM) among a sample of the UK population regarding their intention to have a child. PCA revealed good convergent and discriminant validity for attitude vs. anticipated regret, subjective norm vs. moral norm vs. social relations, but not for intention vs. desire or perceived behavioral control. Multiple regression analyses showed that the additional variables predicted a significant increment in the variance in intention. CFA, however, showed moderate convergent validity and poor discriminant validity and the structural model comprised the 2 predictors from the TRA only. 相似文献
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This research explores perceptions of interpersonal influence in the form of flattery that occurs in a consumer retail setting. Across 4 experiments, results demonstrate empirical evidence of a sinister attribution error (Kramer, 1994), as consumer reactions to flattery were more negative than warranted by the situation. Results across 3 experiments demonstrated that there are 2 types of information processing occurring when consumers make trust judgments in response to flattery. Depending on when flattery occurs, consumers engage in either automatic or deliberative processing of information provided by the sales context. The final experiment further suggests that the automatic processing occurred through categorization based on social cues. 相似文献
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Working memory plays a crucial role in supporting learning, with poor progress in reading and mathematics characterizing children with low memory skills. This study investigated whether these problems can be overcome by a training program designed to boost working memory. Children with low working memory skills were assessed on measures of working memory, IQ and academic attainment before and after training on either adaptive or non‐adaptive versions of the program. Adaptive training that taxed working memory to its limits was associated with substantial and sustained gains in working memory, with age‐appropriate levels achieved by the majority of children. Mathematical ability also improved significantly 6 months following adaptive training. These findings indicate that common impairments in working memory and associated learning difficulties may be overcome with this behavioral treatment. 相似文献
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Acquisition of lever-press responding in rats with delayed reinforcement: A comparison of three procedures 总被引:6,自引:6,他引:0 下载免费PDF全文
Wilkenfield J Nickel M Blakely E Poling A 《Journal of the experimental analysis of behavior》1992,58(3):431-443
The present study examined the acquisition of lever pressing in rats under three procedures in which food delivery was delayed by 4, 8, and 16 seconds relative to the response. Under the nonresetting delay procedure, food followed the response selected for reinforcement after a specified interval elapsed; responses during this interval had no programmed effect. Under the resetting procedure, the response selected for reinforcement initiated an interval to food delivery that was reset by each subsequent response. Under the stacked delay procedure, every response programmed delivery of food t seconds after its occurrence. Two control groups were studied, one that received food immediately after each lever press and another that never received food. With the exception of the group that did not receive food, responding was established with every procedure at every delay value without autoshaping or shaping. Although responding was established under the resetting delay procedure, response rates were generally not as high as under the other two procedures. These findings support the results of other recent investigations in demonstrating that a response not previously reinforced can be brought to strength by delayed reinforcement in the absence of explicit training. 相似文献
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These studies investigate a personality and behavior pattern called aberrant self-promotion, conceptualized as a subclinical form of psychopathy. Aberrant self-promoters (ASPs) are theoretically defined as individuals characterized by a narcissistic personality configuration in combination with antisocial behavior. The first study verifies the existence of persons who manifest the ASP pattern. The second study validates the pattern, using as criteria the Revised Psychopathy Checklist (PCL-R) interview and records of antisocial behavior. In the first study a 179-item questionnaire, composed of five personality instruments, was administered to two separate samples of normal subjects (N = 214 and 367). ASPs were targeted by three methods: cluster analysis, item factor analysis, and person factor analysis. In Sample 1 the three methods demonstrated a convergence of 92 per cent in identifying the same individuals as ASPs; in Sample 2 the convergence rate was 94 per cent. In the second study 32 ASPs targeted in Study 1 were compared to 30 non-ASPS. The ASPs had significantly higher scores on the PCL-R and had committed significantly more antisocial acts than the non-ASPS. The general discussion focuses on the practical, theoretical, and measurement implications of considering aberrant self-promotion a distinct psychological motif. 相似文献