3 ACTUAL EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
⫸ When randomized sampling is unavailable or unfeasible, which of the
following problems must researchers address?
A. Correlation
B. Demographic characteristics
C. Selection bias
D. Treatment effect Answer: C. Selection bias
⫸ When randomized sampling is unavailable or unfeasible, which of the
following problems must researchers address?
A. Correlation
B. Demographic characteristics
C. Selection bias
D. Treatment effect Answer: C. Selection bias
⫸ When randomized sampling is unavailable or unfeasible, which of the
following problems must researchers address?
A. Correlation
B. Demographic characteristics
C. Selection bias
,D. Treatment effect Answer: C. Selection bias
⫸ When randomized sampling is unavailable or unfeasible, which of the
following problems must researchers address?
A. Correlation
B. Demographic characteristics
C. Selection bias
D. Treatment effect Answer: C. Selection bias
⫸ When randomized sampling is unavailable or unfeasible, which of the
following problems must researchers address?
A. Correlation
B. Demographic characteristics
C. Selection bias
D. Treatment effect Answer: C. Selection bias
⫸ When randomized sampling is unavailable or unfeasible, which of the
following problems must researchers address?
A. Correlation
B. Demographic characteristics
C. Selection bias
D. Treatment effect Answer: C. Selection bias
,⫸ When randomized sampling is unavailable or unfeasible, which of the
following problems must researchers address?
A. Correlation
B. Demographic characteristics
C. Selection bias
D. Treatment effect Answer: C. Selection bias
⫸ Which of the following are identification strategies used by
researchers to reduce selection bias in an observational study?
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control Answer: All -
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control
⫸ Which of the following are identification strategies used by
researchers to reduce selection bias in an observational study?
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control Answer: All -
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control
, ⫸ Which of the following are identification strategies used by
researchers to reduce selection bias in an observational study?
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control Answer: All -
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control
⫸ Which of the following are identification strategies used by
researchers to reduce selection bias in an observational study?
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control Answer: All -
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control
⫸ Which of the following are identification strategies used by
researchers to reduce selection bias in an observational study?
A. Propensity score matching
B. Difference-in-difference
C. Synthetic control Answer: All -