Reliability and validity of the Dutch version of the Social Attributes of Dental Anxiety Scale.
The aim of the present study was to assess the reliability and (factorial) validity of the Dutch version of the Social Attributes of Dental Anxiety Scale (SADAS). A factor analysis using the English version of the SADAS revealed two separate scales. The first eight items involved unwanted psychological upsets when patients encounter dental care directly; the four remaining items were about social inhibitions or restrictions due to the perceived state of oral health. Psychometric properties of the Dutch version were assessed using a sample of 170 highly anxious dental patients of a dental fear clinic in Amsterdam, The Netherlands. The Dental Anxiety Scale (DAS) and the Short version of the Dental Anxiety Inventory (S-DAI) were used as measures of dental anxiety. Factor analysis revealed that four factors explained 72.8% of the variance, and two forcedly extracted factors explained 53.4% of the variance. Correlations indicated that the SADAS does measure a different concept than dental anxiety. In addition, t-tests indicated that the SADAS was able to discriminate between a group of non-anxious individuals and the present group of patients. In conclusion, the SADAS is a promising new questionnaire with moderate factorial, but with more than sufficient reliability, as well as construct and discriminant validity.[1]References
- Reliability and validity of the Dutch version of the Social Attributes of Dental Anxiety Scale. Aartman, I.H., Hoogstraten, J. Eur. J. Oral Sci. (1999) [Pubmed]
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