Question 16 (part 2) · LDEK · Basics of medical statistics

An epidemiological cross-sectional study was conducted to determine the frequency of dental caries in children in the first grades of primary school located in urban and rural areas. In order to determine whether the frequency of caries varies statistically significantly between children from urban and rural environments, it is necessary to use:

  1. A. Student’s t-test.
  2. B. linear correlation analysis in Pearson modification.
  3. C. linear correlation analysis in Spearman modification.
  4. D. chi-square test.
  5. E. analysis of variance (ANOWA).
Hint

Identify the type of both variables: place of residence (urban/rural) and caries (present/absent).

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