Numerous biological and psychological factors associated with impaired neurological functioning have been identified as common among the homeless, but there has been relatively little systematic examination of the cognitive functioning of homeless people. This study explored the neuropsychological functioning of 90 homeless men. There was great variability in their test scores, but the presence of possible cognitive impairment was detected in 80% of the sample. Average general intellectual functioning and reading abilities were found to be relatively low, and the incidence of impairments in reading, new verbal learning, memory, and attention and concentration was high. These findings suggest that the homeless men in this study had considerable assessment and treatment needs that were not being met by most of the health and social services offered to them.
The movement to use empirically supported treatments has increased the need for researchers and supervisors to evaluate therapists' adherence to and the quality with which they implement those interventions. Few empirically supported approaches exist for providing these types of evaluations. This is also true for motivational interviewing, an empirically supported intervention important in the addictions field. This study describes the development and psychometric evaluation of the Motivational Interviewing Supervision and Training Scale (MISTS), a measure intended for use in training and supervising therapists implementing motivational interviewing. Satisfactory interrater reliability was found (generalizability coefficient 2 ϭ .79), and evidence was found supporting the convergent and discriminant validity of the MISTS. Recommendations for refinement of the measure and future research are discussed.
This pilot study evaluates the safety and efficacy of divalproex sodium (Depakote) for alcohol withdrawal and relapse prevention. Sixteen patients in moderate alcohol withdrawal were randomized to receive a standard benzodiazepine detoxification, depakote detoxification, or depakote detox plus maintenance. Symptom reduction occurred more rapidly and consistently in the depakote treated patients than in the benzodiazepine control group, and at six-week follow up a greater percentage of patients in the depakote maintenance group were completely abstinent than either detox-only group. There were no significant differences in sociodemographic or drinking data amongst the three cohort samples at baseline. Our findings suggest that the anticonvulsant divalproex sodium (Depakote) may be a safe and efficacious alternative to benzodiazepines for the treatment of alcohol withdrawal. It may be an advantageous alternative for outpatient detoxification, as it has no abuse potential, pharmacologic synergy with alcohol, or substantial cognitive or psychomotor side effects.
The present article provides an overview of two result interpretation aids commonly used in group experimental design research: (a) statistical significance testing and (b) practical significance (i.e., effect sizes). The limitations of each are described and an alternative index is discussed: clinical significance. Clinical significance, which focuses on meaningful change, differs from both statistical and practical significance. Basic concepts associated with clinical significance, including reliable change estimates and criteria for determining clinical significance, are addressed. A heuristic example is presented to demonstrate various levels of clinical significance.
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