Peer interactions of conduct-disordered,anxious-withdrawn,and well-adjusted black adolescents

The relationship between behavior problems and adolescent peer relations was examined in 30 black male adolescents divided into three equal-sized groups on the basis of individual psychosocial functioning (conduct-disordered, anxious-withdrawn, well-adjusted). Groups were matched on age, IQ, and father absence. An observational method was used to evaluate dominance, conflict, affect, and social competence manifested with a friend and with a well-adjusted stranger. Conduct-disordered and anxious-withdrawn adolescents displayed less social competence and less positive affect than well-adjusted adolescents when interacting with both friends and strangers. Anxious-withdrawn adolescents evidenced more personal apprehension than their well-adjusted counterparts. All groups showed greater leadership ability, talked more, and showed less personal apprehension with friends than with strangers. The findings support the role of peer relations in the maintenance and exacerbation of adolescent psychosocial difficulties.This research was supported by funding to the Department of Psychology at Memphis State University granted through the Centers of Excellence Program of the State of Tennessee. This article is based on a master's thesis submitted by the first author to the Department of Psychology at Memphis State University.     

Back to the future: Temporal perspective in the explanation of events

Prospective hindsight involves generating an explanation for a future event as if it had already happened; i.e., one goes forward in time, and then looks back. In order to examine how shifts in perspective might influence people's perceptions of events, we investigated two possible factors: temporal perspective (whether an event is set in the future or past) and uncertainty (whether the event's occurrence is certain or uncertain). In the first experiment, temporal perspective showed little influence while outcome uncertainty strongly affected the nature of explanations for events. Explanations for sure events tended to be longer, to contain a higher proportion of episodic reasons, and to be expressed in past tense. Evidence from the second experiment supports the view that uncertainty mediates not the amount of time spent explaining, but rather subjects' choice of explanation type. The implications of these findings for the use of temporal perspective in decision aiding are discussed.     

Effects of Expectancies and Personalized Feedback on Fat Consumption, Taste, and Preference

Previous studies have shown that people develop expectations about the taste and effects of consumed substances and that those expectations can guide future behavior, cognitions, and affect. Identifying expectancies for the taste of both low- and high-fat foods is important in determining people's reactions to changes in their diets. Study 1 was designed to determine the existence of expectancies for the taste of low-and high-fat foods and the effects of these expectations on food consumption and preference. Ninety-seven subjects tasted a bowl of ice cream and rated the taste on taste judgment forms. The fat content of the ice cream (high- versus low-fat) and the expectancy of high- versus low-fat content were independently manipulated using a balanced placebo design. Expectancy affected the consumption of ice cream under most circumstances: For women who received high-fat ice cream and for men, regardless of the ice cream received, consumption was higher when high-fat ice cream was expected than when low-fat ice cream was expected. Study 2 was designed to investigate the effects of educating individuals about the diet-cancer link on consumption and preference. Receiving information about diet and cancer, especially when the information was personalized, decreased overall consumption and reported preference. Current levels of daily fat consumption also affected laboratory consumption and preference. This study has several implications for interventions to lower dietary fat.     

On the metaphysical presuppositions of Aristotle's Nicomachean Ethics

Conclusion In what precedes, I have argued that Aristotle does not, in his ethics, commit three metaphysical errors sometimes imputed to him: he does not define the good as a fact; he does not claim that human beings move by nature towards their telos; he does not claim, in the ergon argument, that human beings are fixed rather than versatile. Instead, I have shown, he does the opposite in each case: he argues that the good cannot be defined as a fact; he claims that human beings move towards their telos only if they have virtue and virtue is not by nature; he locates, in the human ergon, that which is responsible for human versatility. Finally, I have shown by example that the metaphysical commitments of Aristotle's account of human happiness are not as controversial as they seem.If all of this is true, then perhaps the disorder that has existed in ethics since the enlightenment has been misdiagnosed. Perhaps it is not due to an unhappy choice between end-neutral emotivism on the one hand and Aristotle's bad metaphysics on the other. Perhaps instead it is due, at least in part, to a too hasty rejection of Aristotle's ethics on the grounds of a rejection of his biology.     

Aggression as One Response to Conflict1

This paper presents two studies that explore the link between self-reported conflict management strategies and aggression. It was predicted that conflict strategies involving concern for the needs of the other would be inconsistent with aggressive behavior. On the other hand, conflict strategies that involve coercion and domination were predicted to be positively related to aggressive behavior. Studies using self-report and behavioral measures of aggression provide support for these predictions.     

Prompt comprehension in UNIX command production

We hypothesize that a cognitive analysis based on the construction-integration theory of comprehension (Kintsch, 1988) can predict what is difficult about generating complex composite commands in the UNIX operating system. We provide empirical support for assumptions of the Doane, Kintsch, and Polson (1989, 1990) construction-integration model for generating complex commands in UNIX. We asked users whose UNIX experience varied to produce complex UNIX commands, and then provided help prompts whenever the commands that they produced were erroneous. The help prompts were designed to assist subjects with respect to both the knowledge and the memory processes that our UNIX modeling efforts have suggested are lacking in less expert users. It appears that experts respond to different prompts than do novices. Expert performance is helped by the presentation of abstract information, whereas novice and intermediate performance is modified by presentation of concrete information. Second, while presentation of specific prompts helps less expert subjects, they do not provide sufficient information to obtain correct performance. Our analyses suggest that information about the ordering of commands is required to help the less expert with both knowledge and memory load problems in a manner consistent with skill acquisition theories.