Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1071535 | Drug and Alcohol Dependence | 2007 | 11 Pages |
Abstract
The three indexes social influence-norms, social influence-pressure and attitude showed acceptable deviations from the Rasch model, while the two indexes self-efficacy and social influence-behavior were invalidated by negative local dependence. Conclusion: Of the five tested indexes, three (social influence-norms, social influence-pressure and attitude) showed acceptable criterion-related construct validity and may be considered unbiased representations of the theory-based factors if statistical analyses are appropriately adjusted. The results of this population-based study show that the graphical log-linear Rasch model is useful for evaluating health-related behavior indexes and identifying problems, which can be dealt with when using the indexes in future studies.
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Authors
Pernille Envold Hansen, Volkert Siersma, Lone Ross, Erik Lykke Mortensen, Mette Riegels, Tine Tjørnhøj-Thomsen, Christoffer Johansen,