A pilot study ls conducted to examine a 12-week weigh management program

A pilot study ls conducted to examine a 12-week weigh management program

15. A pilot study ls conducted to examine a 12-week weigh management program. Twelve overweight participants were enrolled, and weight was recorded before and after the 12-week program. Investigators plan to use a paired t-test to examine whether the program was effective in reducing weight. Which of the following are the degrees of freedom for this paired t-test?

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a.10

b.11

c.12

d.13

16. Primary prevention of disease is best described as

a. early detection and treatment of disease

b. control of causal factors of disease

c. increasing host resistance to disease

d. Control of acute disease

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