Knowledge of Oral Health and Oral Hygiene Habits in School Children
Validity and reliability of instruments: ECSB and EHHO
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The study was carried out with a sample of 706 Peruvian students in Regular Basic Education, selected with a simple random sampling of the population between 7 and 18 years of age of a descriptive substantive design, of a quantitative type. The psychometric instrument used was the Oral Health Knowledge Scale (OHSC), composed of 42 items, and the Oral Hygiene Habit Scale (OHS), structured with 40 items, of the Likert scale type. Reliability was first found using Cronbach's alpha, reaching broad standardized acceptability levels for ECSB (á: .921) and OHSEs (á: .720). Then, validity was obtain...
The study was carried out with a sample of 706 Peruvian students in Regular Basic Education, selected with a simple random sampling of the population between 7 and 18 years of age of a descriptive substantive design, of a quantitative type. The psychometric instrument used was the Oral Health Knowledge Scale (OHSC), composed of 42 items, and the Oral Hygiene Habit Scale (OHS), structured with 40 items, of the Likert scale type. Reliability was first found using Cronbach's alpha, reaching broad standardized acceptability levels for ECSB (á: .921) and OHSEs (á: .720). Then, validity was obtained by confirmatory factor analysis and positive and significant KMO (p = 0.001) and respective scaling. Finally, it was obtained that the instruments: ECSB and EHHO, are valid, reliable, significant and applicable to normative contexts.
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