ORIGINAL ARTICLE |
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Year : 2013 | Volume
: 16
| Issue : 1 | Page : 28-31 |
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Test-retest reliability of a questionnaire to assess the knowledge and attitude of dental students toward tobacco counseling services
AO Ehizele, CC Azodo
Department of Periodontics, University of Benin, Benin City, Edo State, Nigeria
Correspondence Address:
C C Azodo Department of Periodontics, New Dental Complex, University of Benin Teaching Hospital, P.M.B. 1111 Ugbowo, Benin City, Edo State - 300 001 Nigeria
Source of Support: None, Conflict of Interest: None | Check |
DOI: 10.4103/1118-8561.112066
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Objective: To determine the test-retest reliability of a new questionnaire designed to assess the attitude of students in a Nigerian dental school to tobacco cessation services. Materials and Methods: A self-administered questionnaire was administered twice at 4 weeks interval to the same set of final year dental students (N = 36) in one of the Nigerian dental schools. Ten questions were randomly selected from the 35-item questionnaire. Intra-class correlation (ICC) coefficients at 95% confidence interval were computed for each selected item and the Cronbach's alpha coefficients were calculated to assess the internal consistency of the questionnaire. Results: The results showed that the least Cronbach's alpha value was 0.49 and the highest was 0.98. Only two items had less than a substantial agreement level (<0.60) and seven items had an almost perfect agreement level (>0.80). The results also indicated that the ICC coefficient is very highly statistically significant (P < 0.001). Conclusion: The questionnaire demonstrated adequate test-retest reliability to assess the attitude of dental students to tobacco cessation services. |
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