A NEW TECHNOLOGY FOR TEACHING/LEARNING MARITAL AND FAMILY THERAPY

A computer technology known as Group Support Systems (GSS) was pilot tested in a doctoral marital and family therapy (MFT) course to explore its usefulness in teaching/learning marital and family therapy. GSS allowed participants to combine face-to-face interaction with dialogue structured by GSS on personal computers. Through linked computers, each participant contributed to group discussions both simultaneously and anonymously. GSS was used to discuss a videotape, to conduct two role plays, and to write this paper. GSS was found to improve brain-storming, enhance collaboration, reduce hierarchical status among participants, increase self-reflection, create a trusting environment, and promote group-supported active learning. Recommendations for further MFT teaching, research, and application of GSS are presented.     

Screening for prostate cancer by using random-effects models

Summary. Random-effects models are used to screen male participants in a long-term longitudinal study for prostate cancer. By using posterior probabilities, each male can be classified into one of four diagnostic states for prostate disease: normal, benign prostatic hyperplasia, local cancer and metastatic cancer. Repeated measurements of prostate-specific antigen, collected when there was no clinical evidence of prostate disease, are used in the classification process. An individual's screening data are considered one repeated measurement at a time as his data are collected longitudinally over time. Posterior probabilities are calculated on the basis of data from other individuals with confirmed diagnoses of each of the four diagnostic states.     

A collaborative university model for employee wellness

Universities are taking a more active approach in understanding and monitoring employees' modifiable health risk factors and chronic care conditions by developing strategies to encourage employees to start and sustain healthy behaviors. WellBama, the University of Alabama's signature health and wellness program, utilizes a collaborative model in partnership with select colleges and departments to implement strategies to improve employees' health status. The program provides onsite health screenings and assessments, timely health advising sessions, assistance in setting and monitoring individual health goals to promote improved health, and preventive examination referrals.     

Implicit Association Task and Perception of Homosexuality: Differences between African American and Non-Hispanic Caucasian Homosexual Males

ABSTRACT

This study investigated the relationship between sexual orientation and minority group membership in a sample of African American and non-Hispanic Caucasian (NHC) homosexual men. Participants competed measures of pathology, sexual orientation, and ethnic identity. They completed two IATs, one using homosexual symbols and the other ethnically diverse homosexual images. Results indicated that African American participants reported more ethnic and sexual orientation discriminatory experiences than NHC. It was also found that both groups exhibited a positive association toward gay symbols. Both groups also demonstrated a bias toward NHC homosexual images, although the bias was stronger for NHC participants. Moderation analyses indicated that as internalized homophobia increased, preference for gay NHC images decreased, and that high ethnically discriminatory experiences resulted in stronger associations between NHC images and “good” attributes. Overall, the results partially support the minority stress theory and highlight some important differences between African American and NHC homosexual men.     

Developing a National Index of Subjective Wellbeing: The Australian Unity Wellbeing Index

The Australian Unity Wellbeing Index has beendesigned as a new barometer of Australians'satisfaction with their lives, and life inAustralia. It is based on, and develops, thetheoretical model of subjective wellbeinghomeostasis. The Index comprises two sub-scalesof Personal and National Wellbeing. Data werecollected through a nationally representativesample of 2,000 people in April/May 2001.Factor analysis confirmed the integrity of thetwo sub-scales and, confirming empiricalexpectation, the average level of lifesatisfaction was 75.5 percent of the scalemaximum score. Group comparisons revealed thatall age groups maintained their Personal Indexscore within the normal range. In addition,people in country areas were more satisfiedwith their personal lives than city-dwellers,but less satisfied about the nationalsituation, and people who had recentlyexperienced a strong positive event evidenced arise in wellbeing, whereas those who hadexperienced a strong negative event evidencedwellbeing in the low-normal range. It is arguedthat these data generally support homeostatictheory. However, an unusual result was thatfemales were more satisfied with their ownlives than males. A tentative argument isadvanced that this may represent aconstitutional difference. It is concluded thatthe Australian Unity Wellbeing Index haspotential as a valid, reliable and sensitiveinstrument to monitor national wellbeing.     

Cooperative Accounts: Avoiding Conflict and Repairing Social Relations

The analytical concept of accounts has long presented sociologists with an excellent tool for the study of talk. Nonetheless, studies of accounts often neglect the fact that cooperation is common when an account for untoward behavior is constructed. Many studies tend to flatten the process of how accounts are created by routinely describing them as being “offered” by offenders and then “evaluated” by reproachers. We assume that accounts are often negotiated between parties as a means of avoiding conflict and preserving a relationship. As such, this paper develops the concept of cooperative accounts that are offered to (or projected upon) offenders as a means of explaining their untoward behavior. While also examining hostile accounts, this paper concentrates on developing the cooperative account in order to investigate more fully Scott and Lyman's (1968) argument that accounts are crucial for managing conflict and maintaining social order. Because offering cooperative accounts to others is a routine social interaction their examination provides an opportunity to reanchor the study of accounts back into the symbolic interactionist tradition.     

Reverse Auctions with Multiple Reinforcement Learning Agents*

Reverse auctions in business‐to‐business (B2B) exchanges provide numerous benefits to participants. Arguably the most notable benefit is that of lowered prices driven by increased competition in such auctions. The competition between sellers in reverse auctions has been analyzed using a game‐theoretic framework and equilibria have been established for several scenarios. One finding of note is that, in a setting in which sellers can meet total demand with the highest‐bidding seller being able to sell only a fraction of the total capacity, the sellers resort to a mixed‐strategy equilibrium. Although price randomization in industrial bidding is an accepted norm, one might argue that in reality managers do not utilize advanced game theory calculations in placing bids. More likely, managers adopt simple learning strategies. In this situation, it remains an open question as to whether the bid prices converge to the theoretical equilibrium over time. To address this question, we model reverse‐auction bidding behavior by artificial agents as both two‐player and n‐player games in a simulation environment. The agents begin the game with a minimal understanding of the environment but over time analyze wins and losses for use in determining future bids. To test for convergence, the agents explore the price space and exploit prices where profits are higher, given varying cost and capacity scenarios. In the two‐player case, the agents do indeed converge toward the theoretical equilibrium. The n‐player case provides results that reinforce our understanding of the theoretical equilibria. These results are promising enough to further consider the use of artificial learning mechanisms in reverse auctions and other electronic market transactions, especially as more sophisticated mechanisms are developed to tackle real‐life complexities. We also develop the analytical results when one agent does not behave strategically while the other agent does and show that our simulations for this environment also result in convergence toward the theoretical equilibrium. Because the nature of the best response in the new setting is very different (pure strategy as opposed to mixed), it indicates the robustness of the devised algorithm. The use of artificial agents can also overcome the limitations in rationality demonstrated by human managers. The results thus have interesting implications for designing artificial agents in automating bid responses for large numbers of bids where human intervention might not always be possible.     

Racialization in Public and Private: Memories of First Racial Experiences

Research suggests retention of childhood memories into adulthood requires such memories to hold a certain amount of importance. Therefore, initial racial memories likely play a role in one??s racialization process, or formulation of an understanding of race. This study uses data from 49 in-depth interviews with white undergraduate students on memories of their first experiences of race. Data generally fell into the categories of private and public racialization. Private racialization included accounts of events that took place at home, primarily consisting of racist joking, derogatory comments, and family storytelling. Public racialization consisted of events that took place outside the home, most commonly at school. Data also revealed interactions between private and public realms, where accommodations were made in private to control, minimize or restrict interracial contact in public.