A probabilistic model of cross-categorization

Most natural domains can be represented in multiple ways: we can categorize foods in terms of their nutritional content or social role, animals in terms of their taxonomic groupings or their ecological niches, and musical instruments in terms of their taxonomic categories or social uses. Previous approaches to modeling human categorization have largely ignored the problem of cross-categorization, focusing on learning just a single system of categories that explains all of the features. Cross-categorization presents a difficult problem: how can we infer categories without first knowing which features the categories are meant to explain? We present a novel model that suggests that human cross-categorization is a result of joint inference about multiple systems of categories and the features that they explain. We also formalize two commonly proposed alternative explanations for cross-categorization behavior: a features-first and an objects-first approach. The features-first approach suggests that cross-categorization is a consequence of attentional processes, where features are selected by an attentional mechanism first and categories are derived second. The objects-first approach suggests that cross-categorization is a consequence of repeated, sequential attempts to explain features, where categories are derived first, then features that are poorly explained are recategorized. We present two sets of simulations and experiments testing the models’ predictions about human categorization. We find that an approach based on joint inference provides the best fit to human categorization behavior, and we suggest that a full account of human category learning will need to incorporate something akin to these capabilities.     

Endorsement of Group Change and Organization Change Affirmative Action Programs for Male and Female Beneficiaries

To test the position that some people’s willingness to endorse affirmative action is influenced by the match between beneficiary group and the attributional underpinnings of the programs, endorsement of four programs that could be used to benefit either women or men were assessed among 95 undergraduate students in Ontario, Canada. Students preferred the use of a remedial program that suggested that beneficiaries are under-qualified and need to develop job relevant skills for female versus male beneficiaries. This was driven by perceptions of the effectiveness of the program. For male beneficiaries, participants were more supportive of a mentorship development program that implied the necessity of structural change than they were of the remedial program. These effects were independent of participant gender.     

Learning to learn causal models

Learning to understand a single causal system can be an achievement, but humans must learn about multiple causal systems over the course of a lifetime. We present a hierarchical Bayesian framework that helps to explain how learning about several causal systems can accelerate learning about systems that are subsequently encountered. Given experience with a set of objects, our framework learns a causal model for each object and a causal schema that captures commonalities among these causal models. The schema organizes the objects into categories and specifies the causal powers and characteristic features of these categories and the characteristic causal interactions between categories. A schema of this kind allows causal models for subsequent objects to be rapidly learned, and we explore this accelerated learning in four experiments. Our results confirm that humans learn rapidly about the causal powers of novel objects, and we show that our framework accounts better for our data than alternative models of causal learning.     

The Impact of Anger Management Treatment and Rational Emotive Behavior Therapy in a Public School Setting on Social Skills,Anger Management,and Depression

Public school students participated in a group to enhance and improve anger management. The study used a pre-post design with a comparison group. Students were assigned to either Anger Management Treatment or Anger Management plus Rational Emotive Behavior Therapy (REBT). Each child served as his or her own control and received an empirically validated intervention. Pretest–posttest data were evaluated using the Social Skills Rating System, the Children’s Depression Inventory and the Children’s Inventory of Anger. Results indicate that the addition of the REBT component to Anger Management reduced anger as well as depression, while improving social skills, suggesting the addition of a specialized cognitive behavioral component increased the effectiveness of the intervention.     

Physician and patient communication training in primary care: effects on participation and satisfaction

OBJECTIVE: To assess the effects of a communication skills training program for physicians and patients. DESIGN: A randomized experiment to improve physician communication skills was assessed 1 and 6 months after a training intervention; patient training to be active participants was assessed after 1 month. Across three primary medical care settings, 156 physicians treating 2,196 patients were randomly assigned to control group or one of three conditions (physician, patient, or both trained). MAIN OUTCOME MEASURES: Patient satisfaction and perceptions of choice, decision-making, information, and lifestyle counseling; physicians' satisfaction and stress; and global ratings of the communication process. RESULTS: The following significant (p < .05) effects emerged: physician training improved patients' satisfaction with information and overall care; increased willingness to recommend the physician; increased physicians' counseling (as reported by patients) about weight loss, exercise, and quitting smoking and alcohol; increased physician satisfaction with physical exam detail; increased independent ratings of physicians' sensitive, connected communication with their patients, and decreased physician satisfaction with interpersonal aspects of professional life. Patient training improved physicians' satisfaction with data collection; if only physician or patient was trained, physician stress increased and physician satisfaction decreased. CONCLUSION: Implications for improving physician-patient relationship outcomes through communication skills training are discussed.     

A test of the peak-end rule with extended autobiographical events

Forty-nine students went on vacation for an average of 7 days and sent daily text messages about the happiness they had experienced over the previous 24 h. After their vacation, they were questioned on the overall happiness they had experienced and were asked to recall the daily record of their happiness. The duration of the vacation had no effect on the subsequent evaluations, and participants were not able to recall the detail of their day-to-day changes in happiness. A number of summary measures provided reasonable prediction of the recalled overall happiness of the vacation. The peak-end rule was not an outstandingly good predictor. Overall, the results indicate much reconstruction of the affective states.     

Distressed Mothers and Their Infants Use a Less Efficient Timing Mechanism in Creating Expectancies of Each Other’s Looking Patterns

The prediction of events and the creation of expectancies about their time course is a crucial aspect of an infant's mental life, but temporal mechanisms underlying these predictions are obscure. Scalar timing, in which the ratio of mean durations to their standard deviations is held constant, enables a person to use an estimate of the mean for its standard deviation. It is one efficient mechanism that may facilitate predictability and the creation of expectancies in mother-infant interaction. We illustrate this mechanism with the dyadic gaze rhythm of mother and infant looking at and looking away from each other's faces. Two groups of Hi- and Lo-Distress mothers were created using self-reported depression, anxiety, self-criticism and childhood experiences. Lo-Distress infants (controls) used scalar timing 100% of the time, about double that of Hi-Distress infants. Lo-Distress mothers used scalar timing about nine times as much as Hi-Distress mothers. The diminished use of scalar timing patterns in Hi-Distress mothers and infants may make the anticipation of each other's gaze patterns more difficult for both partners.     

How does crime pay? The differentiation of criminal specialisms by fundamental incentive

Most attempts to determine offence specialisms have not benefited from any formal psychological framework of behavioural differentiation. Bandura's framework (Social foundations of thought and action, 1986) of the fundamental incentives to human action offers an interesting perspective on what might underlie differential patterns of offending. The framework draws attention to the distinction between Material, Power/Status, and Sensory incentives, leading to the hypotheses that crimes which share any one of these incentives will be more likely to be committed by the same person, as revealed through high inter‐correlations, but be less highly correlated with crimes with different fundamental incentives. To test these hypotheses the correlations between 42 offending behaviours as self‐reported by 185 convicted young offenders were examined. A Multidimensional Scaling analysis of the inter‐correlations revealed three distinct styles of offending that could be related to Bandura's Material (Cronbach's α = 0.94), Power/Status (α = 0.90) and Sensory (α = 0.76) incentives. The identification of this psychological basis for the differentiation of criminal styles provides a model for considering offenders' patterns of specialisation which is of value both in clarifying the aetiology of different types of crime and in considering which crimes may be behaviourally equivalent when trying to link them to a common offender or infer offender characteristics from crime scene information. Copyright © 2006 John Wiley & Sons, Ltd.     

Ideology as instrument

Comments on the article by J. T. Jost, which argued that the end-of-ideology claims that emerged in the aftermath of World War II were both incorrect and detrimental to the field of political psychology. M. Glassman and D. Karno make three critical points. First, Jost objectified ideology as a grand strategy implemented at the individual level, rather than as an instrument used for a specific purpose in activity. In doing so, he set ideology up as an "object" that guides human behavior rather than as a rational part of human experience. Second, they take issue with the idea that, because somebody acts in a manner that can be categorized as ideological, there actually is such a thing as ideology separate from that event and/or political experience and that psychologists ought to understand the meaning of ideology in order to understand future human activities as outside observers. Third, Jost seems to see this objective ideology as a unidirectional, causal mechanism for activity, a mechanism that assumes individuals act according to ideology, which eclipses the possibility that immediate ideological positions are the residue of purposeful activity. Glassman and Karno suggest that it may be better to take a pluralistic view of ideology in human action. Where ideology does exist, it is as a purposeful instrument--part of a logically based action to meet some ends-in-view--a mixture of immediate goals tied to secondary belief systems (which have been integrated to serve the material purposes of the purveyors of these ideologies). So if we are to understand ideology, we can only understand it through its use in human activity.