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Full-Text Articles in Medicine and Health Sciences
Evaluation Of The Stability And Validity Of Participant Samples Recruited Over The Internet., Daniel Z Lieberman
Evaluation Of The Stability And Validity Of Participant Samples Recruited Over The Internet., Daniel Z Lieberman
Psychiatry and Behavioral Sciences Faculty Publications
Research conducted via the Internet has the potential to reach important clinical populations of participants who would not participate in traditional studies. Concerns exist, however, about the validity of samples recruited in this manner, especially when participants are anonymous and never have contact with study staff. This study evaluated two anonymous samples that were recruited over the Internet to test an online program designed to help problem drinkers. The two studies were conducted 3 years apart, and different recruitment strategies were utilized. Despite these differences, the two samples were highly similar in demographic and clinical features. Correlations that have been …
Young People's Blood Alcohol Concentration And The Alcohol Consumption City Law, Brazil, Raquel De Boni, Carl G. Leukefeld, Flavio Pechansky
Young People's Blood Alcohol Concentration And The Alcohol Consumption City Law, Brazil, Raquel De Boni, Carl G. Leukefeld, Flavio Pechansky
Center on Drug and Alcohol Research Faculty Publications
The paper assesses blood alcohol concentration and risk behaviors for traffic accidents before and after the implementation of a law which prohibits the use of alcoholic beverages on city gas stations. In Porto Alegre, Southern Brazil, young people go out at night and drive to gas station convenience stores to buy alcoholic beverages which are consumed on the premises of parking lots in gas stations. Data were obtained from self-administered questionnaires and breath analyzers in two cross-sectional collections with purposive samples of youngsters in May and July 2006 (n=62, and n=50, respectively). There were no significant differences between the groups …
Pathways To Change: The Effect Of A Web Application On Treatment Interest., Daniel Z Lieberman, Suena H Massey
Pathways To Change: The Effect Of A Web Application On Treatment Interest., Daniel Z Lieberman, Suena H Massey
Psychiatry and Behavioral Sciences Faculty Publications
Most individuals with drinking problems do not receive treatment, generally because they do not perceive the need for it. It is difficult to access this population of problem drinkers in order to encourage treatment-seeking. A Web-based program was written, designed to increase motivation for change. The program guided non-treatment-seekers through a multi-stage assessment and provided them with feedback. The level of interest in treatment was measured pre-and post-intervention. Compared to baseline, after the intervention, significantly more individuals rated themselves "very interested" in participating in some form of traditional treatment (19% vs. 28%), and their focus on a specific modality increased.