Question 66 (part 2) · LEK · Basics of medical statistics
An epidemiological cross-sectional type study was conducted to determine the potential relationship between sleep quality and headache. The results showed that in the group of 200 participants with sleep disorders, the incidence of morning headaches was 20%, and in the group of 150 participants without sleep disorders the incidence of such headaches was 5%. Which of the following methods of data analysis is necessary to verify the formulated study objective?
- A. Student's t-test.
- B. linear correlation analysis.
- C. chi-square test.
- D. analysis of variance (ANOVA).
- E. linear regression analysis.
Hint
Identify the type of both variables: is the outcome measured on a scale or recorded as present or absent?
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