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The Dental Attitudes Questionnaire: comparing two response formats
Community Dentistry and Oral Epidemiology
|February 1, 1987
Summary
The Dental Attitudes Questionnaire (DAQ) showed poor psychometric properties with its original two-point format. A revised six-point response scale significantly improved reliability and validity for assessing oral health attitudes.
Area of Science:
- Oral Health Psychology
- Psychometrics
Background:
- The Dental Attitudes Questionnaire (DAQ) was developed in 1984 to assess attitudes towards oral healthcare.
- The original DAQ utilized a dichotomous 'agree-disagree' format for its items.
Purpose of the Study:
- To compare the psychometric properties of the original two-point response format of the DAQ with a revised six-point response format.
- To evaluate the reliability and validity of different response scales for the DAQ.
Main Methods:
- A comparative study was conducted using the Dental Attitudes Questionnaire.
- Two response formats were assessed: the original two-point (agree-disagree) scale and a six-point scale.
- Psychometric criteria, including item and subtest parameters, variance, internal reliability, and test-retest reliability, were evaluated.
Main Results:
- The original two-point response scale failed to meet acceptable psychometric criteria.
- The six-point response scale demonstrated acceptable item and subtest parameters, variance, internal reliability, and test-retest reliability.
- Minor revisions, including rewording for eight items, were suggested for the six-point scale.
Conclusions:
- The six-point response format is superior to the original two-point format for the Dental Attitudes Questionnaire.
- The revised DAQ shows improved psychometric properties for assessing oral health care attitudes.
- Further research is recommended to refine the questionnaire.