Reliability in rehabilitation measurement

The article examines reliability as a key component of the psychometric properties of tests and inventories. What is reliability, types of reliability, why is reliability important, and other reliability issues are addressed in a manner that will help Work readers to better understand and apply psychometric considerations in the context of rehabilitation research. The authors contend that reliability is an essential condition for the psychometric soundness of measurement instruments that are used in rehabilitation research and practice.     

Contributions of Clinical Sociology to the Medical Field

Health care in the United States is a complicated structure of social roles, processes, and communication, involving both patients and professionals. Understanding the social dimensions of the health care process can assist health professionals in providing better care to their patients. This paper analyzes several dimensions of the health care system, as suggested in a paper by Kallen (Kallen D. J. 1984. Clinical Sociology Review 2:78–93.) These include the perceptions of participants in the system; structures of the groups involved, including their roles and norms; the process by which groups, as opposed to individuals, operate; and finally the need for the clinical sociologist as a system maintenance specialist, to deal with these problems.     

The physical impact of computers and electronic game use on children and adolescents,a review of current literature

Children using computers and electronic games may adopt the kinds of sustained and awkward postures that are associated with musculoskeletal disorders in working adults. If they do, the physical demands of extensive use could lead to a wide range of adverse effects on developing children, including visual, neurological and physical changes. This article reviews the literature related to media use, ergonomics, epidemiology and pediatrics that address the physical impact of computer use by children. The literature establishes that computer use is common, but does not demonstrate a causal or statistical association with any physical disorders. Laboratory studies on vision, case reports of game-related tendonitis and ergonomic analyses of classroom computers suggest that concern is warranted.     

A Comparison of Hispanic and Anglo Calls to a Gambling Help Hotline

Prevalence studies have found that problem gamblers tend to be non-Caucasians. Nevertheless, information on non-Caucasian gambling patterns and problems is virtually non-existent. Data collected during years 1992–1998 on Hispanic (N = 209) and Anglo (N = 5311) problem gamblers calling the Florida Council on Compulsive Gambling Hotline for help is examined to provide information on one such non-Caucasian group: Hispanics. A sharp difference in the number of Hispanic and Anglo callers was found during this six year period (3.8% Hispanic and 96.2% Anglo). Differences were also found in the likelihood of Hispanics calling about their own problems, having gone for previous help, and types of gambling activities. Similarities were found between the two groups regarding age, marital status, and the three most cited problems caused by gambling: problems with family, inability to pay bills and going into debt. Anglos were significantly more likely to engage in illegal activities for gambling money and problems with job. Group differences caution against using Anglo based prevention and treatment programs with Hispanics populations.     

Fuzzy-Trace Theory, Risk Communication, and Product Labeling in Sexually Transmitted Diseases

Health care professionals are a major source of risk communications, but their estimation of risks may be compromised by systematic biases. We examined fuzzy-trace theory's predictions of professionals' biases in risk estimation for sexually transmitted infections (STIs) linked to: knowledge deficits (producing underestimation of STI risk, re-infection, and gender differences), gist-based mental representation of risk categories (producing overestimation of condom effectiveness for psychologically atypical but prevalent infections), retrieval failure for risk knowledge (producing greater risk underestimation when STIs are not specified), and processing interference involving combining risk estimates (producing biases in post-test estimation of infection, regardless of knowledge). One-hundred-seventy-four subjects (experts attending a national workshop, physicians, other health care professionals, and students) estimated the risk of teenagers contracting STIs, re-infection rates for males and females, and condom effectiveness in reducing infection risk. Retrieval was manipulated by asking estimation questions in two formats, a specific format that "unpacked" the STI category (infection types) and a global format that did not provide specific cues. Requesting estimates of infection risk after relevant knowledge was directly provided, isolating processing effects, assessed processing biases. As predicted, all groups of professionals underestimated the risk of STI transmission, re-infection, and gender differences, and overestimated the effectiveness of condoms, relative to published estimates. However, when questions provided better retrieval supports (specified format), estimation bias decreased. All groups of professionals also suffered from predicted processing biases. Although knowledge deficits contribute to estimation biases, the research showed that biases are also linked to fuzzy representations, retrieval failures, and processing errors Hence, interventions that are designed to improve risk perception among professionals must incorporate more than knowledge dissemination. They should also provide support for information representation, effective retrieval, and accurate processing.