Optimal estimation of a finite population mean under generalized random permutation models

Employing certain generalized random permutation models and a general class of linear estimators of a finite population mean, it is shown that many of the conventional estimators are “optimal” in the sense of minimum average mean square error. Simple proofs are provided by using a well-known theorem on UMV estimation. The results also cover certain simple response error situations.     

Aspects of guilt and self-reported substance use in adolescence

The use of addictive substances is undergoing moralization in American society-behaviors once viewed as personal preferences now carry moral significance. Research has shown that sociomoral emotions like guilt, thought to be reflective of one's internalized standards and societal mores, can be an important influence on behavior. The present study explored the relationship between college students' self-reports of adolescent substance use (cigarettes, alcohol, and marijuana) and scores on indices tapping different aspects of guilt (Standards, Situational, and Chronic Guilt). Participants were 230 undergraduate students (mean age = 19; 55 percent female; 69 percent White). Substance users had lower scores on Standards and Situational Guilt than non-users, but no difference was observed in Chronic Guilt. The present results suggest that a stronger internalization of societal standards, as reflected by higher scores on Standards and Situational Guilt, may prove a useful tool in the prevention of substance use.     

THE THERAPEUTIC ALLIANCE IN HOME‐BASED FAMILY THERAPY: IS IT PREDICTIVE OF OUTCOME?

This study examined the association between the therapeutic alliance in family therapy and changes in symptom distress, interpersonal relationships, and family coping. The participants (N = 81) were members of low socioeconomic status families referred to a university clinic for in-home family therapy. Participants completed the Outcome Questionnaire, Family Crisis Oriented Personal Evaluation, and the Family Therapy Alliance questionnaires. Regression analyses revealed that the therapeutic alliance explained 19% of the variance in symptom distress changes for mother, 55% for fathers, and 39% for adolescents. The implications of these findings for practicing and researching family therapy are presented.     

Social Security and SSI as safety nets for the elderly poor

Partial privatization of Social Security is being considered as an integral part of the future Social Security program for American retirees. Because privatization creates uncertainty about the amount of retirement income that future retirees may expect to receive, the issue of a safety net is critical. This article presents the findings from an empirical study that investigated the degree to which the current Social Security and Supplemental Security Income (SSI) programs provide a safety net, separately and in combination, to the elderly poor. The major findings were that the Social Security program not only increases the income statuses of both posttransfer and pretransfer poor elderly people considerably, but that the program also significantly equalizes the distribution of income among them. In addition, the SSI program supplements the Social Security program in establishing an even greater safety net, especially for posttransfer poor elderly people. On the other hand, Social Security benefits make the income disparity among races greater between both posttransfer and pretransfer poor elderly people. Implications for policy are discussed.     

Implementation issues for consumer-directed programs: comparing views of policy experts, consumers, and representatives

An increasing number of aging community providers and consumers support consumer-direction (CD) in long-term care services. In regard to devolution, consumer-direction goes beyond the usual approach of shifting responsibilities from the federal government to state governments to bring programs "closer to the people." Consumer-direction goes even further by placing resources directly in the hands of consumers. Yet, many questions remain unanswered regarding how to implement CD personal assistance services in general, and especially for older persons. This article describes the importance of examining views from multiple key stakeholders involved in implementing CD programs. We report on three background studies that have informed the Cash and Counseling Demonstration and Evaluation (CCDE) design and implementation-policy expert interviews as well as surveys and focus groups with consumers and representatives. As a fourth data source, we drew upon experiences in designing the CCDE and initial results from the first year of implementation. Each of the three studies on its own provided essential information for planning the CCDE. However, when we examined the studies together, and added CCDE design and implementation experiences, views expressed by the different stakeholders formed a type of multi-perspective "dialogue" that expanded our knowledge about implementing CD services. We hope this increased knowledge will help expand the availability of such services for consumers of any age who want to direct their own care.     

Evaluation of an upper extremity student-role functioning scale using item response theory

Millions of workers suffer from upper extremity (musculoskeletal) disorders. Many of these workers are predisposed to upper extremity musculoskeletal disorders because of early exposure to ergonomic risks as students. Computer usage for four or more hours remains the greatest risk for upper extremity musculoskeletal disorders for workers and students alike. Developing preventative methods to reduce student exposure, and thus protect future workers from upper extremity musculoskeletal disorders later in life, requires an appropriate measure for upper extremity musculoskeletal disorder prevalence and related limitations for student functioning. Item response theory analysis was used to evaluate and further develop a upper extremity functioning scale for the student role.     

Correlates of load carriage and obstacle course performance among women

To examine correlates of the speed at which female soldiers carrying loads could cover 3.2 km on foot and traverse an obstacle course, 12 volunteers (mean +/- SD: 25.3 +/- 6 years, 166 +/- 7 cm, 61.3 +/- 7 kg) were timed over 3.2 km while carrying loads of 14, 27, and 41 kg, and while traversing an obstacle course with the two lighter loads. Pearson correlations showed that absolute VO_[2 max] and 3.2 km run time without a load were the best predictors of 3.2 km load carriage time for all loads. Also, larger subjects with greater muscle mass were able to carry the heaviest load faster than smaller, less muscular subjects, likely because the 41 kg load represented a smaller percentage of the former's bodyweight. Maximum number of sit-ups and push-ups, composite score of the Army Physical Fitness Test as well as body height were positively correlated with the speed at which some course segments were traversed.