Development and validation of the Eating Behavior Inventory

The Eating Behavior Inventory (EBI) is a self-report instrument for assessing behaviors that have been theoretically implicated in weight loss, e.g., self-monitoring of food intake and of weight, refusing offers of food, eating at only one place, shopping from a list, eating in response to emotions. Thirty items were constructed in the form of first-person statements, e.g., I eat in the middle of the night. Each item was to be rated with a 5-point scale according to how often it was true for the respondent. Items were scored such that higher scores always reflected more appropriate (theoretically facilitative of weight control) eating patterns. Validity of individual items and total score was assessed in four studies. Twenty-six of the original items appeared valid and were retained. The resulting total score demonstrated validity in these studies and in two cross-validational comparisons. Internal consistency as measured by split-half reliability and correlations of item scores with total score was acceptable. One month test-retest reliability of item and total scores was satisfactory. Clinical and research applications of the EBI are discussed.An early version of this article was presented at the Taos International Conference on Treatment of Addictive Behaviors, Taos, New Mexico, February 1979.     

Competence and the maintenance of behavior

The overjustification effect is manifested by decreased interest in an attractive activity following removal of a reward made contingent upon participation in the activity. Evidence is reviewed which suggests that rewards conveying information that the person who is performing the activity is competent cause the behavior to become insulated from the overjustification effect. This maintenance of behavior resulting from competence information is also shown to be a powerful factor in increasing the transfer and posttherapy persistence of behavior in both behavioral and traditional therapies.I wish to thank Pamela Sheridan, Tom Eddy, Larrie Hutton, and Jon Aronoff for their help during the course of my research on this topic. I am also grateful to Sylvia Snavely for sharing her helpful ideas with me.     

You can take it with you: individual differences and expatriate effectiveness

The authors report the collaborative efforts of 2 research teams that independently investigated the effects of stable personality traits (the Big Five) and specific behavioral competencies (cultural flexibility, task and people orientations, and ethnocentrism) on key dimensions of expatriate effectiveness: psychological adjustment, assignment withdrawal cognitions, and job performance. Analyses of multiple-source and longitudinal data from 3 studies, including a diverse sample of expatriates in Hong Kong and separate samples of Korean and Japanese expatriates posted around the world, indicate several direct effects of individual differences. Further data show reliable distinctions between the traits and competencies as well as incremental prediction by either set of predictors in the presence of the others.     

Synchrony in the onset of mental-state reasoning: evidence from five cultures

Over the past 20 years, developmental psychologists have shown considerable interest in the onset of a theory of mind, typically marked by children's ability to pass false-belief tasks. In Western cultures, children pass such tasks around the age of 5 years, with variations of the tasks producing small changes in the age at which they are passed. Knowing whether this age of transition is common across diverse cultures is important to understanding what causes this development. Cross-cultural studies have produced mixed findings, possibly because of varying methods used in different cultures. The present study used a single procedure to measure false-belief understanding in five cultures: Canada, India, Peru, Samoa, and Thailand. With a standardized procedure, we found synchrony in the onset of mentalistic reasoning, with children crossing the false-belief milestone at approximately 5 years of age in every culture studied. The meaning of this synchrony for the origins of mental-state understanding is discussed.     

A psychological test battery to detect prison inmates who fake insanity or mental retardation

A contrasted groups design was used to investigate the accuracy with which a test battery could detect persons faking mental disorder. The MMPI and Bender Gestalt were used in combination with a Malingering Scale that was developed for initial validation. One hundred adult males comprised five groups of 20 subjects each. Noncriminal psychiatric inpatients and mental retardates were compared with prison inmates who were given a financial incentive to successfully fake ‘insanity’ or mental retardation, and with inmate controls. Based on discriminant analyses, 92 to 95% of subjects were correctly classified as either faking or not faking. Although cross-validation is needed, this study reduced many of the analog factors which have comprised the generalizability of previous findings.     

Profiling the "pro-environmental individual": a personality perspective

There is considerable scientific interest in the psychological correlates of pro‐environmental behaviors. Much research has focused on demographic and social‐psychological characteristics of individuals who consistently perform such actions. Here, we report the results of 2 studies in which we explored relations between broad personality traits and pro‐environmental actions. Using a wide variety of behavior and personality measures, we consistently found moderate positive relations between Openness to Experience and pro‐environmental activities in both a community sample (Study 1: N = 778) and an undergraduate student sample (Study 2: N = 115). In Study 2, we showed that the effect of Openness on pro‐environmental behaviors was fully mediated by individuals’ environmental attitudes and connection to nature. Our findings suggest that high levels of aesthetic appreciation, creativity, and inquisitiveness, but not personality traits associated with altruism, may have motivated the performance of pro‐environmental actions among our respondents. Implications for intervention development are discussed.     

Disjunction Between Probability and Verdict in Juror Decision Making

Although the law assumes a close relation between the probability that a defendant committed the act in question and the ensuing verdict of the jurors, prior research has shown this assumption to be often violated. We present five experiments designed to show that factors that influence probability also influence verdict, but other factors are capable of directly producing changes in verdict without affecting probability. In Experiment 1, we replicated the Wells Effect; scenarios generating the same probability that the Blue Bus Company was to blame for the same accident, nevertheless, generated significantly different likelihoods of finding the defendant liable. In Experiment 2, we showed that equally diagnostic affirmative and negative evidence had differential effects on mock jurors' probability estimates and verdicts. In Experiment 3, we showed that a completely nondiagnostic witness, who either implicates the same bus company or a different bus company as did a diagnostic witness, significantly influenced mock jurors' verdicts. However, the nondiagnostic witness did not change the probability that the Blue Bus Company was responsible for the accident. In Experiment 4, we demonstrated that base rate and witness reliability information resulted in very similar probability estimates but radically different verdicts. In Experiment 5, we showed that a change in the diagnosticity of the evidence influenced both probability and verdict with the former mediating differences in the later. Because probability is only one of the several determinants of the verdict, the two dependent variables are not as closely related as the law presumes. Copyright © 2011 John Wiley & Sons, Ltd.     

Exploring Race Based Differences in Patterns of Life-Course Criminality

A persistent issue facing criminologists is the challenge of developing theoretical models that provide comprehensive explanations of the onset and persistence of criminality. One promising theory to develop over the last 30 years has been life-course theory. Using multivariate analysis of variance the main question posed in this research, do elements of social development shape the trajectory of persistent offending in a race-neutral fashion, or are the dynamics shaping life-course criminality unique for people of color, was examined. The results provide a number of useful insights into the relationship between race, life-course transition factors, and longitudinal patterns of criminality.     

Individual differences: Factors affecting employee utilization of flexible work arrangements

This study investigated individual and organizational factors that predict an individual’s choice to use flexible work arrangements (FWAs). Survey data was collected from 144 employees in two different organizations. The results revealed several significant predictors of FWAs: tenure, hours worked per week, supervisory responsibilities, perceptions of workgroup use and personal lifestyle. Individuals with longer tenure in the organization, who had supervisory responsibilities, had coworkers in their immediate workgroup who used FWAs or had personal lifestyle preferences were more likely to use the programs than those with less tenure, who did not have supervisory responsibilities, did not perceive their workgroup used FWAs or did not have personal lifestyle preferences.