Cluster designs to assess the prevalence of acute malnutrition by lot quality assurance sampling: a validation study by computer simulation

Summary.  Traditional lot quality assurance sampling (LQAS) methods require simple random sampling to guarantee valid results. However, cluster sampling has been proposed to reduce the number of random starting points. This study uses simulations to examine the classification error of two such designs, a 67×3 (67 clusters of three observations) and a 33×6 (33 clusters of six observations) sampling scheme to assess the prevalence of global acute malnutrition (GAM). Further, we explore the use of a 67×3 sequential sampling scheme for LQAS classification of GAM prevalence. Results indicate that, for independent clusters with moderate intracluster correlation for the GAM outcome, the three sampling designs maintain approximate validity for LQAS analysis. Sequential sampling can substantially reduce the average sample size that is required for data collection. The presence of intercluster correlation can impact dramatically the classification error that is associated with LQAS analysis.     

Regulation of technology adoption when individuals pursue multiple utility

Should regulatory approaches to technology adoption in U.S. agriculture be command and control in character, or use economic incentives? This paper addresses this question while testing the “I and We” multiple utility model and suggesting socioeconomic theory as a conceptual framework. Results show that one perhaps cannot understand farmer response to regulation without considering norms. Introducing the “We-utility” notion into the standard “I-utility” model adds explanatory power. Government's regulatory role needs to be shifted to first providing the impetus for action and then to helping in the evolution of norms, no matter which approach is used. The proposed socioeconomic theory goes beyond standard microeconomics by including both the idea of norms and that of positive freedoms, and thus introducing ethical considerations into economic analysis.     

Work and non-work factors as perceived causes of symptoms of psychological strain

Two studies are reported in which the respondents were asked to attribute causes to their experienced symptoms of stress as measured by the General Health Questionnaire. The results show that most respondents can do this, that there are differences in attributions by symptoms, and that the pattern of attributions is similar for two different occupational groups, even though the level of symptomology is higher for nurses than for laboratory workers. It is argued that this simple addition to symptom questionnaires might have useful diagnostic value, but that further research with different populations and other symptoms is desirable.     

Narrating the organizational self: Reframing the role of the news release

Public relations practitioners have long relied on the press release, or news release, as a means of communicating with publics via the media. The news release may also be seen as an autobiographical narrative through which the organization seeks to express and negotiate aspects of its identity. Reconceptualizing news releases as a narrative genre offers a means of studying processes of identity construction as events unfold, rather than relying on post hoc reconstructions that can explain away inconsistencies. Organizational crises offer an excellent opportunity for research, as organizations strive to make sense of complex situations of uncertainty. This study examines the bankruptcy scandal of Italian multinational Parmalat to illustrate how the news release may be configured as a narrative genre that helps to construct organizational identity.     

Celebration intoxication: an evaluation of 21st birthday alcohol consumption

The authors designed this study to evaluate the prevalence and magnitude of heavy drinking among college students in celebrating their 21st birthdays and the impact of a birthday card suggesting moderation. The authors randomly assigned subjects to receive or not receive the card approximately 1 week prior to their birthday. Approximately 1 week after turning 21, the authors sent surveys to all subjects. Results based on 164 returned surveys indicated that 90% consumed alcohol, 75% went to a bar, 61% reached a blood alcohol content (BAC) above the legal driving limit, and 23% reached a BAC above .25. Results were similar for men and women. Although subjects generally liked the birthday card, it had no impact on their drinking or celebration plans. Findings suggest the need for additional attention focusing on specific alcohol-related events and further development of prevention approaches that are event specific.     

A longitudinal study of the learning and retention of task-specific training

This longitudinal study evaluated the learning and retention of task-specific training during the subjects' classroom performance of a one-person pivot transfer. Twelve subjects were videotaped completing the transfer (pretest). The subjects then participated in a two-hour training session. One week later (posttest 1), and one year later (posttest 2) the subjects were videotaped again. A checklist was used to analyze the videotapes. A one-way ANOVA with repeated measures revealed that there was a statistically significant difference between the tests (F = 243.73, p-value < 0.0001). A post hoc analysis (Bonferroni procedure) indicated that the posttest 1 scores (mean = 13, SD = 0.40) were significantly higher than the pretest scores (mean = 2.96, SD = 0.39) indicating an improved score on the checklist. There was no significant difference between the scores of posttest 1 and posttest 2 (mean = 12.79, SD = 0.60) indicating that subjects continued to perform the task with proper body mechanics one year post training.     

Labor Market Search and Optimal Retirement Policy

A popular and long‐standing view is that social security is a means for young, unemployed people to “purchase” jobs from older workers. Can social security, by encouraging retirement and hence creating job vacancies for the young, improve the allocation of workers to jobs? Maybe, according to a standard model of labor market search, but public retirement programs currently pay the elderly substantially more than their jobs are worth. An important effect is that retirement reduces the value of other vacant jobs. Our results imply that recent reforms aimed at reducing retirement incentives are likely to improve labor market efficiency.     

Relationship among grip strength,functional outcomes,and work performance following hand trauma

This study examined the relationship among the recovery grip strength, functional outcomes, and work performance following occupational therapy intervention for hand trauma. This study had a sample size of 15 participants whose recovery grip strength was measured using a Jamar dynamometer, whose satisfaction with outcomes was measured by the Michigan Hand Outcomes Questionnaire (MHQ), and whose compliance with the home therapy program was measured by a visual analog scale (VAS). A Pearson r correlation demonstrated a significant relationship between recovery grip strength and two MHQ subset scores: overall hand function (r = 0.59, p = 0.019) and activities of daily living (ADL) performance (r = 0.61, p = 0.016). The participants' self-rating of compliance did not predict or influence either recovery grip strength or MHQ scores. A moderate positive correlation approaching significance (r = 0.51, p = 0.052) was found between grip strength and overall MHQ scores. The researchers concluded that a recovery grip strength measure should be used along with functional measures to appropriately assess overall hand function following hand trauma.     

“Feeling Warmth and Close to Her”: Communication and Resilience Reflected in Turning Points in Positive Adult Stepchild–Stepparent Relationships

With the goal of understanding the development of positive stepchild–stepparent relationships, the researchers focused on turning points characterizing the interaction of adult stepchildren who have a positive bond with a stepparent. Engaging a relational turning points perspective, 38 stepchildren (males and females, ages 25 to 52 years old) who reported a positive stepparent relationship were interviewed, generating 269 turning points which were categorized into 15 turning point types and coded by valence. Turning points occurring most frequently were: prosocial actions, quality time, conflict/disagreement, changes in household/family composition, and rituals. Findings are discussed, including implications for developing and enacting resilient and positive stepchild–stepparent relationships and future directions for researchers wanting to focus on positive family interaction.