EBM PRACTICE EXAM QUESTIONS AND ANSWERS
In a weight loss study fifty senior centers were randomized to receive either the weight loss intervention
(n = 25) or a cognitive training intervention (n=25) as a control. At each center 18-20 participants were
enrolled in the program assigned to that center. After 12 sessions the groups were compared in terms of
weight loss
A. Case-control study
B. Cohort Study
C. Cross-sectional study
D. Non-randomized trial
E. Randomized control trial - CORRECT ANSWER✅✅E. Randomized control trial
A study performed analysis of data from overweight or obese children and young adults 3 to 19 years of
age who were included in the national health and nutrition examination survey from 1999 through 2012
to assess the prevalence of multiple cardio metabolic risk factors. This type of study is a:
A. case-control study
B. Cohort study
C. Cross-Sectional Study
D. Non-randomized trial
E. Randomized control trial - CORRECT ANSWER✅✅C. Cross Sectional Study
A distribution has a mean of 13, a median of 11, and a mode of 9. Which of the following best describes
that distribution?
A. negative skew
B. normally distributed
C. positive skew - CORRECT ANSWER✅✅C. Positive skew
A new drug shortens the duration of influenza, but it does not affect the number of deaths or new cases.
It will therefore:
In a weight loss study fifty senior centers were randomized to receive either the weight loss intervention
(n = 25) or a cognitive training intervention (n=25) as a control. At each center 18-20 participants were
enrolled in the program assigned to that center. After 12 sessions the groups were compared in terms of
weight loss
A. Case-control study
B. Cohort Study
C. Cross-sectional study
D. Non-randomized trial
E. Randomized control trial - CORRECT ANSWER✅✅E. Randomized control trial
A study performed analysis of data from overweight or obese children and young adults 3 to 19 years of
age who were included in the national health and nutrition examination survey from 1999 through 2012
to assess the prevalence of multiple cardio metabolic risk factors. This type of study is a:
A. case-control study
B. Cohort study
C. Cross-Sectional Study
D. Non-randomized trial
E. Randomized control trial - CORRECT ANSWER✅✅C. Cross Sectional Study
A distribution has a mean of 13, a median of 11, and a mode of 9. Which of the following best describes
that distribution?
A. negative skew
B. normally distributed
C. positive skew - CORRECT ANSWER✅✅C. Positive skew
A new drug shortens the duration of influenza, but it does not affect the number of deaths or new cases.
It will therefore:
