HLTH 501
WEEK 1 PROBLEMS
20 points
Place answers here:
Chapter 1 Chapter 2
1. D. A Margin of error 1. A-3 , B- 10, C-7, D-1, E-9
2. D. A case-control study
2. A. sample of individuals
3. D. A & C 3. A. Case-Control Study
4. C. No increased risk 4. B. Randomized Control Trial
5. D. Inappropriately accounting for 5. Cohort Study
relationships among characteristics
6. True 6. True
7. False 7. False
8. True 8. True
9. False 9. True
10. True 10. True
Chapter 1
Multiple Choice
1. The measure of uncertainty in a biostatistician’s calculation of a particular outcome that may
result from using a subset of the population to estimate the actual likelihood of the event
occurring in the population as a whole is referred to by what statistical term?
A) A chance error
B) A systematic error
C) A standard error
D) A margin of error
2. A subset of the population of interest is often referred to by what statistical term?
A) A sample of individuals
B) A subculture of individuals
C) A class of individuals
D) A minority group
3. The most appropriate study design depends, among other things, on the distribution of
A) The risk factor in the population of interest
B) The participants
C) The outcome in the population of interest
D) A & C
4. The interpretation of a relative risk equal to 1 suggest:
A) An increase in risk
B) A decrease in risk
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, HLTH 501
C) No increased risk
D) None of the above
5. Appropriately conducting and interpreting biostatistical applications require attention to a
number of important issues. These include, but are not limited to, the following except:
A) Clearly defining the objective or research question
B) Selecting a representative sample, and ensuring that the sample is of sufficient size
C) Quantifying uncertainty
D) Inappropriately accounting for relationships among characteristics
True/False
6. True or False? Biostatistics is defined as the application of statistical principles in medicine,
public health, or biology.
7. True or False? The data collected in a biostatistics study can be applied to any population
regardless of race, class, and socioeconomic status.
8. True/False? Epidemiology is a field of study focused on the study of health and illness in
human populations, patterns of health or disease, and the factors that influence these patterns.
9. True/ False? The ideal study design from a statistical point of view is the case control study.
10. True/ False? In a clinical trial, if we observe a large difference in cholesterol levels between
participants receiving the experimental drug and the placebo or comparator, we can infer that the
experimental drug is effective.
Chapter 2
1. Match the definitions to the appropriate words.
Term Description
A. Bias ___3_ 1. A group of participants who usually share
some common characteristics and
monitored or followed over time
B. Clinical Trial _10___ 2. Strongly associated with outcome
C. Confounding _7___ 3. Systematic uncertainty
D. Cohort___1_ 4. At a single point in time
E. Prevalence of disease__9__ 5. Subjects receive two or more treatments
6. Creating similar comparison groups
7. Risk factor distortion
8. Number of new cases of disease over time
9. The proportion of individuals with the
condition at a single point in time
10. Subject randomly assigned to treatment
groups
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WEEK 1 PROBLEMS
20 points
Place answers here:
Chapter 1 Chapter 2
1. D. A Margin of error 1. A-3 , B- 10, C-7, D-1, E-9
2. D. A case-control study
2. A. sample of individuals
3. D. A & C 3. A. Case-Control Study
4. C. No increased risk 4. B. Randomized Control Trial
5. D. Inappropriately accounting for 5. Cohort Study
relationships among characteristics
6. True 6. True
7. False 7. False
8. True 8. True
9. False 9. True
10. True 10. True
Chapter 1
Multiple Choice
1. The measure of uncertainty in a biostatistician’s calculation of a particular outcome that may
result from using a subset of the population to estimate the actual likelihood of the event
occurring in the population as a whole is referred to by what statistical term?
A) A chance error
B) A systematic error
C) A standard error
D) A margin of error
2. A subset of the population of interest is often referred to by what statistical term?
A) A sample of individuals
B) A subculture of individuals
C) A class of individuals
D) A minority group
3. The most appropriate study design depends, among other things, on the distribution of
A) The risk factor in the population of interest
B) The participants
C) The outcome in the population of interest
D) A & C
4. The interpretation of a relative risk equal to 1 suggest:
A) An increase in risk
B) A decrease in risk
This study source was downloaded by 100000837082818 from CourseHero.com on 01-28-2022 23:05:01 GMT -06:00
Page 1 of 5
https://www.coursehero.com/file/49843371/Week-1-Problemsdocx/
, HLTH 501
C) No increased risk
D) None of the above
5. Appropriately conducting and interpreting biostatistical applications require attention to a
number of important issues. These include, but are not limited to, the following except:
A) Clearly defining the objective or research question
B) Selecting a representative sample, and ensuring that the sample is of sufficient size
C) Quantifying uncertainty
D) Inappropriately accounting for relationships among characteristics
True/False
6. True or False? Biostatistics is defined as the application of statistical principles in medicine,
public health, or biology.
7. True or False? The data collected in a biostatistics study can be applied to any population
regardless of race, class, and socioeconomic status.
8. True/False? Epidemiology is a field of study focused on the study of health and illness in
human populations, patterns of health or disease, and the factors that influence these patterns.
9. True/ False? The ideal study design from a statistical point of view is the case control study.
10. True/ False? In a clinical trial, if we observe a large difference in cholesterol levels between
participants receiving the experimental drug and the placebo or comparator, we can infer that the
experimental drug is effective.
Chapter 2
1. Match the definitions to the appropriate words.
Term Description
A. Bias ___3_ 1. A group of participants who usually share
some common characteristics and
monitored or followed over time
B. Clinical Trial _10___ 2. Strongly associated with outcome
C. Confounding _7___ 3. Systematic uncertainty
D. Cohort___1_ 4. At a single point in time
E. Prevalence of disease__9__ 5. Subjects receive two or more treatments
6. Creating similar comparison groups
7. Risk factor distortion
8. Number of new cases of disease over time
9. The proportion of individuals with the
condition at a single point in time
10. Subject randomly assigned to treatment
groups
This study source was downloaded by 100000837082818 from CourseHero.com on 01-28-2022 23:05:01 GMT -06:00
Page 2 of 5
https://www.coursehero.com/file/49843371/Week-1-Problemsdocx/
