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Year : 2021  |  Volume : 11  |  Issue : 2  |  Page : 132-137

Development of modified dental beliefs scale among an adolescent rural population

1 Department of Public Health Dentistry, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
2 Department of Oral Pathology and Microbiology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, Karnataka, India

Correspondence Address:
Dr. Mithun Pai
Department of Public Health Dentistry, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education,Manipal, Karnataka.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jispcd.JISPCD_367_20

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Objective: Modified dental beliefs scale (MDBS), the shortened form of the R-DBS, was developed in a multicultural population. The factor structure of MDBS is not explored in an Indian context. The study explores psychometric properties and tests the fit of MDBS in a rural costal adolescent population in a vernacular language. Materials and Methods: The cross-sectional analysis was carried out at two randomly selected rural Institutes in Costal Karnataka. Psychometric properties using a questionnaire were assessed. Validity and reliability were assessed by Cronbach’s α, split-half reliability, and test–retest analysis. Statistical analysis: Factor analysis with varimax rotation was employed to add a level of statistical precision and assist in the development the instrument. Two models were developed and tested for goodness of fit, root mean square error of approximation, and comparative fit. Results: The MDBS revealed a Cronbach’s α value of 0.76. Split-half reliability and Guttman split-half reliability were found to be 0.86 and 0.86, respectively. Test–retest reliability was found to be 0.74 (P < 0.01). Factor analysis revealed a five-factor solution explaining 67.8% of the variation in the scale. CFA revealed an appropriate goodness of fit for both models with better values for model two with chi‐square value was statistically significant and the ratio value (χ2/df = 7.8). Conclusion: The results of the present study indicate that the MDBS is a reliable and valid tool for the present population subset, with good fit for the second model with two separate latent variables.

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