A bayesian approach to a reliability problem: Theory,analysis and interesting numerics

We consider approximate Bayesian inference about the quantity R = P[Y₂> Y₁] when both the random variables Y₁, Y₂ have expectations that depend on certain explanatory variables. Our interest centers on certain characteristics of the posterior of R under Jeffreys's prior, such as its mean, variance and percentiles. Since the posterior of R is not available in closed form, several approximation procedures are introduced, and their relative performance is assessed using two real datasets.     

Exploring the Place of Forgiveness Therapy in Social Work Practice

This paper examines the potential contribution of forgiveness therapy to social workers who may often encounter clients who have experienced severe interpersonal injury, or who have inflicted significant harm upon themselves or others. Basic theoretical and empirical perspectives on the processes and dynamics of forgiveness, as well as an introduction to forgiveness therapy, are provided. A case example demonstrating the application of forgiveness therapy in a social work setting is utilized to underscore points of convergence and potential divergence between this innovative therapeutic approach and important social work values and practice concepts. Research directions that may promote the further incorporation of forgiveness and forgiveness therapy into social work are indicated.     

On the expansion of the market and the decline of the family

Over the past two hundred years, large, modern firms have tended to replace small, family businesses. In parallel, the family has declined as a social institution. We suggest that these developments are interrelated. Because information of cheating in market transactions spreads only gradually in large markets, the reputation of the family firm could support contractual performance only in small, traditional markets. As markets grew in size, this reputational mechanism could no longer operate. The small, family firm was then replaced by the large, modern firm. This transition led to a decrease in the importance of the family.      

Bayesian infermce about the reliability function foe the exponential distributions

The posterior distributions and the posterior bounds of the reliability functions have been derived for the one and twoparameter exponential distributions. Using Grubbs' (1971) data the posteriors are tabulated and plotted and their robustness studied     

On the definition and varieties of attitude and wellbeing

In a paper published in Social Indicators Research in 1975, Levy and Guttman proved the proposition that wellbeing is a special case of attitude. They exploited this result for establishing a certain lawfulness for wellbeing behavior, and built on this for revealing more specialized features of the lawfulness. Five years later in this same journal, Andrews and McKennell published two papers on exactly the same proposition, but without proving it, without building on known relevant lawfulness of attitudinal behavior, and without mentioning (neither positively nor negatively) the Levy-Guttman work. The Andrews-McKennell papers are shown to be a retrogression rather than a scientific advance, being conceptually confused, using inappropriate data analysis, and dealing with arbitrary assumptions which are either untested, untestable or false.     

Empirical Evaluations of Skinner’s Analysis of Problem Solving

We reviewed 12 studies in which the researcher taught problem-solving strategies, such as self-questioning and visual imagining, to children and adolescents with and without disabilities to facilitate the learning of math, spelling, play/social, and communication skills. We analyzed these studies in terms of types of problem-solving strategies, the multiple control involved in problem solving, the extent to which problem solving occurred at the overt or covert level. In addition to suggesting limitations of the literature, we recommend areas for future research and practice.

     

Everyday discrimination,emotion, and daily interactions during adolescence

The present study examined whether everyday discrimination relates to the frequency of adolescents' positive and negative daily social interactions and whether these associations are driven by anger and positive emotion. Adolescents (N = 334) participated in a three-wave longitudinal study, in which they completed surveys regarding everyday discrimination, anger, and positive emotion, as well as 15 daily reports of conflict and getting along with friends and family. Higher everyday discrimination was related to more daily conflicts and fewer experiences of getting along with other people. Longitudinal models also provided preliminary evidence that everyday discrimination was associated with daily conflicts 4 years later indirectly through anger. Overall, results suggest everyday discrimination relates to adolescents' daily experiences, potentially through differences in emotion.     

Illicit use of prescribed stimulant medication among college students

The authors investigated illicit use of stimulant medications at a midwestern university. They used a questionnaire to (a) examine the extent to which university students illicitly used stimulant medications prescribed for attention-deficit hyperactivity disorder; (b) determine why college students abused such drugs; and (c) identify the factors that predicted illicit use of prescribed stimulant medication. Findings revealed that 17% of 179 surveyed men and 11% of 202 women reported illicit use of prescribed stimulant medication. Forty-four percent of surveyed students stated that they knew students who used stimulant medication illicitly for both academic and recreational reasons. Students reported they experienced time pressures associated with college life and that stimulants were said to increase alertness and energy. Regression analysis revealed that the factor that predicted men's use was knowing where to get easily acquired stimulant medication, whereas the main predictor for women was whether another student had offered the prescribed stimulants.