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NBDHE-Community Health portion - 24 questions fully solved & updated
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Which type of sample reduces chance of bias the most? A. Stratified B. Random C. Systematic D. Judgement B. Random Which sample describes selecting everyone 'nth" person to participate. Example: Every 5th person in line was chosen A. Stratified B. Systematic C. Convenience D. Random...

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  • September 10, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nbdhe community health portion

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  • NBDHE
  • NBDHE

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NBDHE-Community Health portion ~ 24
questions fully solved & updated



Which type of sample reduces chance of bias the most?
A. Stratified
B. Random
C. Systematic
D. Judgement - ANSWER- B. Random

Which sample describes selecting everyone 'nth" person to participate. Example:
Every 5th person in line was chosen
A. Stratified
B. Systematic
C. Convenience
D. Random - ANSWER- B. Systematic

In which sample do you select an element according to certain subgroups to
diminish the chance of sample fluctuations?
A. Stratified
B. Random
C. Judgement
D. Systematic - ANSWER- A. Stratified

-usually with stratified, the subgroups have something in common.

Which sample describes someone who knows the population and selects the
sample; familiarity with the population? It also has the most bias?
A. Stratified
B. Random
C. Judgement
D. Convenience - ANSWER- C. Judgement
-pick people who will choose the results they want

Which sample describes a group being chosen based on ease. Example: standing
outside of a grocery store and giving survey to anyone you see.

, A. Stratified
B. Judgement
C. Random
D. Convenience - ANSWER- D. Convenience

What variable is the outcome of interest; should change in response to
intervention?
A. Dependent
B. Independent - ANSWER- A. Dependent

-DEPENDS on the intervention

What variable is also know as the intervention; being manipulated?
A. Dependent
B. Independent - ANSWER- B. Independent

If you were to plot the following data: 100, 99, 97, 95, 93, 93, 92, 91, 89...what type
of skew would your graph represent?
A. Positive skew
B. Negative skew
C. Normal bell curve
D. None of the above - ANSWER- B. Negative skew
-tail will be longer on left

The CDC and Department of Health and Human Services falls under which level of
government public heath?
A. International
B. Federal
C. State
D. Local - ANSWER- B. Federal

If the mean score is 50 with a standard deviation of 5, what would a -1 standard
deviation be?
A. 49
B. 51
C. 45
D. 55 - ANSWER- C. 45

- 50 is the mean then standard deviation is 5, so if its minus 1 you would actually
subtract whatever the standard deviation is one time. If it was -2, you would
subtract the standard deviation twice, making it 40.

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