DHYG 2070 Final Exam Question and
answers verified to pass 2026/2027
While reading the health section in the local newspaper, a dental hygienist learns that public health
officials are predicting a serious and potentially deadly new flu virus for the fall-winter season in North
America. Which of the following terms best describes the flu situation as predicted in the newspaper
article?
A. Cluster
B. Endemic
C. Epidemic
D. Rate
E. Prevalence - correct answer C. Epidemic
A newspaper article further emphasizes that the populations at risk include young children and the
elderly. Which of the following uses of epidemiologic information does this observation reflect?
A. Collecting data to describe normal biologic processes
B. Identifying risk factors and determinants of disease
C. Understanding the natural history of disease
D. Evaluating risk among population groups
E. Evaluating intervention and prevention strategies - correct answer D. Evaluating risk among
population groups
The prediction of an increase in flu cases results in additional news reports articles about the decrease in
availability of flu vaccines. To address the limited amount of vaccines available, guidelines are
distributed identifying which segments of the population will receive priority to obtain the vaccine. The
priorities focus on children, the elderly, and those with certain disease conditions. Which of the
following host risk factors are being considered in the prioritization process.
,A. Immunity to disease or natural resistance
B. Age
C. Dietary practices and nutritional deficiency
D. A and B
E. A, B, and C - correct answer D. A and B
As part of a research methods course, a dental hygiene student, following appropriate research
protocol, decides to monitor all allied health science students on campus to determine how many
students become ill with the flu during the three months of the fall term. This best describes which of
the following principles of research?
A. Count
B. Incidence
C. Prevalence
D. Proportion
E. Rate - correct answer B. Incidence
A researcher conducts a study in which 200 persons with oral cancer and 200 without oral cancer are
identified and provide their informed consent to participate. Following this step, information is collected
about past exposure to a group of variables suspected of being responsible for the disease. What type of
study is described?
A. Case-control
B. Cohort
C. Clinical trial
D. Descriptive - correct answer A. Case-control
, If a published article that reports on a research study is well written, the reader should be able to
determine:
A. All details of the study design by reading the abstract
B. The purpose of the study or the question
C. The null hypothesis
D. A and B
E. B and C - correct answer E. B and C
What does standard deviation describe?
A. The variability of a set of data
B. How confident you are that you have calculated the mean
C. Measurement of large sets of data
D. Measure of prediction - correct answer A. The variability of a set of data
Evidence-based decision making in dental hygiene practice:
A. Relies on an ability to understand what is written in the scientific/professional literature
B. Relies on the belief that all clients are to be treated the same
C. Relies on rigorous scientific evidence from numerous studies to support clinical decision making
D. Integrates experiences with current research findings
E. A, C, and D - correct answer E. A, C, and D only
The prediction of an increase in flu cases results in additional news report articles about the decrease in
availability of flu vaccines. To address the limited amount of vaccines available, guidelines are
distributed identifying which segments of the population will receive priority to obtain the vaccine. The
answers verified to pass 2026/2027
While reading the health section in the local newspaper, a dental hygienist learns that public health
officials are predicting a serious and potentially deadly new flu virus for the fall-winter season in North
America. Which of the following terms best describes the flu situation as predicted in the newspaper
article?
A. Cluster
B. Endemic
C. Epidemic
D. Rate
E. Prevalence - correct answer C. Epidemic
A newspaper article further emphasizes that the populations at risk include young children and the
elderly. Which of the following uses of epidemiologic information does this observation reflect?
A. Collecting data to describe normal biologic processes
B. Identifying risk factors and determinants of disease
C. Understanding the natural history of disease
D. Evaluating risk among population groups
E. Evaluating intervention and prevention strategies - correct answer D. Evaluating risk among
population groups
The prediction of an increase in flu cases results in additional news reports articles about the decrease in
availability of flu vaccines. To address the limited amount of vaccines available, guidelines are
distributed identifying which segments of the population will receive priority to obtain the vaccine. The
priorities focus on children, the elderly, and those with certain disease conditions. Which of the
following host risk factors are being considered in the prioritization process.
,A. Immunity to disease or natural resistance
B. Age
C. Dietary practices and nutritional deficiency
D. A and B
E. A, B, and C - correct answer D. A and B
As part of a research methods course, a dental hygiene student, following appropriate research
protocol, decides to monitor all allied health science students on campus to determine how many
students become ill with the flu during the three months of the fall term. This best describes which of
the following principles of research?
A. Count
B. Incidence
C. Prevalence
D. Proportion
E. Rate - correct answer B. Incidence
A researcher conducts a study in which 200 persons with oral cancer and 200 without oral cancer are
identified and provide their informed consent to participate. Following this step, information is collected
about past exposure to a group of variables suspected of being responsible for the disease. What type of
study is described?
A. Case-control
B. Cohort
C. Clinical trial
D. Descriptive - correct answer A. Case-control
, If a published article that reports on a research study is well written, the reader should be able to
determine:
A. All details of the study design by reading the abstract
B. The purpose of the study or the question
C. The null hypothesis
D. A and B
E. B and C - correct answer E. B and C
What does standard deviation describe?
A. The variability of a set of data
B. How confident you are that you have calculated the mean
C. Measurement of large sets of data
D. Measure of prediction - correct answer A. The variability of a set of data
Evidence-based decision making in dental hygiene practice:
A. Relies on an ability to understand what is written in the scientific/professional literature
B. Relies on the belief that all clients are to be treated the same
C. Relies on rigorous scientific evidence from numerous studies to support clinical decision making
D. Integrates experiences with current research findings
E. A, C, and D - correct answer E. A, C, and D only
The prediction of an increase in flu cases results in additional news report articles about the decrease in
availability of flu vaccines. To address the limited amount of vaccines available, guidelines are
distributed identifying which segments of the population will receive priority to obtain the vaccine. The
