Psychometric properties of Greek versions of the Modified Corah Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS)
<p>Abstract</p> <p>Background</p> <p>A growing body of literature describes the performance of dental fear questionnaires in various countries. We describe the psychometric properties of Greek versions of the Modified Dental Anxiety Scale (MDAS) and the Dental Fear Surv...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2008-09-01
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| Series: | BMC Oral Health |
| Online Access: | http://www.biomedcentral.com/1472-6831/8/29 |
| _version_ | 1818565150667440128 |
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| author | Patrikiou Antonis Dabarakis Nikolaos Emmanouil Dimitris Arapostathis Konstantinos Coolidge Trilby Economides Nikolaos Kotsanos Nikolaos |
| author_facet | Patrikiou Antonis Dabarakis Nikolaos Emmanouil Dimitris Arapostathis Konstantinos Coolidge Trilby Economides Nikolaos Kotsanos Nikolaos |
| author_sort | Patrikiou Antonis |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>A growing body of literature describes the performance of dental fear questionnaires in various countries. We describe the psychometric properties of Greek versions of the Modified Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS) in adult Greek patients.</p> <p>Methods</p> <p>Greek versions of the MDAS and DFS were administered to two samples of adult dental patients. In the first sample, 195 patients attending one of three private practice dental offices in a large city in Greece completed the questionnaires in the waiting room before dental treatment. After treatment, their dentists (who did not know how the patients had answered the questionnaire) rated their anxiety during dental treatment. In the second sample, 41 patients attending a Greek university dental school clinic completed the questionnaire twice at two separate visits, in order to provide test-retest data. Cronbach's alpha was used to compute the internal consistencies, while Spearman's rho was used to compute the test-retest reliabilities. Construct validity was assessed by correlating the responses to the MDAS and DFS by Spearman's rho. Spearman's rho was also used to examine the criterion validities, by comparing the questionnaire responses with the dentists' ratings of anxiety.</p> <p>Results</p> <p>The internal consistencies for the MDAS were 0.90 and 0.92 in the two samples; for the DFS, the internal consistencies were 0.96 in both samples. The test-retest reliabilities were 0.94 for the MDAS and 0.95 for the DFS. The correlation between the two questionnaires was 0.89. The patients' responses to both questionnaires were significantly related to the dentists' ratings of their anxiety during dental treatment (both p values <0.001).</p> <p>Conclusion</p> <p>The results indicate that the Greek versions of the MDAS and DFS have good internal consistencies and test-retest reliabilities, as well as good construct and criterion validities. The psychometric properties of the Greek versions of these questionnaires appear to be similar to those previously reported in other countries.</p> |
| first_indexed | 2024-12-14T01:37:33Z |
| format | Article |
| id | doaj.art-5fd5c08e7e414e5c99e905d3dd5e26cf |
| institution | Directory Open Access Journal |
| issn | 1472-6831 |
| language | English |
| last_indexed | 2024-12-14T01:37:33Z |
| publishDate | 2008-09-01 |
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| series | BMC Oral Health |
| spelling | doaj.art-5fd5c08e7e414e5c99e905d3dd5e26cf2022-12-21T23:21:50ZengBMCBMC Oral Health1472-68312008-09-01812910.1186/1472-6831-8-29Psychometric properties of Greek versions of the Modified Corah Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS)Patrikiou AntonisDabarakis NikolaosEmmanouil DimitrisArapostathis KonstantinosCoolidge TrilbyEconomides NikolaosKotsanos Nikolaos<p>Abstract</p> <p>Background</p> <p>A growing body of literature describes the performance of dental fear questionnaires in various countries. We describe the psychometric properties of Greek versions of the Modified Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS) in adult Greek patients.</p> <p>Methods</p> <p>Greek versions of the MDAS and DFS were administered to two samples of adult dental patients. In the first sample, 195 patients attending one of three private practice dental offices in a large city in Greece completed the questionnaires in the waiting room before dental treatment. After treatment, their dentists (who did not know how the patients had answered the questionnaire) rated their anxiety during dental treatment. In the second sample, 41 patients attending a Greek university dental school clinic completed the questionnaire twice at two separate visits, in order to provide test-retest data. Cronbach's alpha was used to compute the internal consistencies, while Spearman's rho was used to compute the test-retest reliabilities. Construct validity was assessed by correlating the responses to the MDAS and DFS by Spearman's rho. Spearman's rho was also used to examine the criterion validities, by comparing the questionnaire responses with the dentists' ratings of anxiety.</p> <p>Results</p> <p>The internal consistencies for the MDAS were 0.90 and 0.92 in the two samples; for the DFS, the internal consistencies were 0.96 in both samples. The test-retest reliabilities were 0.94 for the MDAS and 0.95 for the DFS. The correlation between the two questionnaires was 0.89. The patients' responses to both questionnaires were significantly related to the dentists' ratings of their anxiety during dental treatment (both p values <0.001).</p> <p>Conclusion</p> <p>The results indicate that the Greek versions of the MDAS and DFS have good internal consistencies and test-retest reliabilities, as well as good construct and criterion validities. The psychometric properties of the Greek versions of these questionnaires appear to be similar to those previously reported in other countries.</p>http://www.biomedcentral.com/1472-6831/8/29 |
| spellingShingle | Patrikiou Antonis Dabarakis Nikolaos Emmanouil Dimitris Arapostathis Konstantinos Coolidge Trilby Economides Nikolaos Kotsanos Nikolaos Psychometric properties of Greek versions of the Modified Corah Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS) BMC Oral Health |
| title | Psychometric properties of Greek versions of the Modified Corah Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS) |
| title_full | Psychometric properties of Greek versions of the Modified Corah Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS) |
| title_fullStr | Psychometric properties of Greek versions of the Modified Corah Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS) |
| title_full_unstemmed | Psychometric properties of Greek versions of the Modified Corah Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS) |
| title_short | Psychometric properties of Greek versions of the Modified Corah Dental Anxiety Scale (MDAS) and the Dental Fear Survey (DFS) |
| title_sort | psychometric properties of greek versions of the modified corah dental anxiety scale mdas and the dental fear survey dfs |
| url | http://www.biomedcentral.com/1472-6831/8/29 |
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