PHC 6001: Final Exam Questions and Answers 100% Verified
Terms in this set (54)
Which of the following statements about a. The exposure or treatment is not controlled by the investigator
experimental studies is not correct?
a. The exposure or treatment is not
controlled by the investigator
b. The person doing the research controls
the exposure
c. Study participants are usually randomly
assigned to comparison groups
d. A treatment and its side effects are
evaluated
In an experimental study, I'm selecting a. Non-randomized
controls by assigning people admitted to
the hospital on Monday, Wednesday, and
Friday to treatment group A, and those
admitted on Tuesday, Thursday, and
Saturday to treatment group B. This
selection of study subjects is:
a. Non-randomized
b. Randomized
c. Not easy to manipulate
d. One that eliminates selection bias
,An analysis that includes all subjects who c. Intent-to-treat analysis
were randomized to the treatment and
comparison groups, regardless of whether
they received or completed their assigned
study protocol, is:
a. Run-in period
b. Efficacy Analysis
c. Intent-to-treat analysis
d. Comparability
I'm conducting a randomized trial and it is d. Stratify by age and gender before randomizing
essential that my two groups are
comparable by age and gender. The best
way to ensure that this happens is to:
a. Randomly assign subjects to treatment
groups from the whole population
b. Personally choose exactly which people
will be in each treatment group
c. Assign all the women to the treatment
group and all the men to the comparison
group
d. Stratify by age and gender before
randomizing
An experimental study was conducted b. Individual therapeutic
among adults with Type 2 diabetes in order
to determine if a new medication was more
effective in reducing blood glucose levels
than the currently used medication. What
type of experimental study is this?
a. Individual preventive
b. Individual therapeutic
c. Community preventive
d. Community therapeutic
The Health Professionals Cohort Study b. Prospective
began in 2005 in order to evaluate a series
of hypotheses about men's health relating
nutritional factors to the incidence of
serious illnesses such as cancer, heart
disease, and other vascular diseases. Every
two years, members of the study will
receive surveys with questions about
diseases and health-related topics like
smoking, physical activity, and medications
taken. The surveys that ask detailed dietary
information will be administered in four-
year intervals. What kind of cohort study is
this?
a. Ambidirectional
b. Prospective
c. Experimental
d. Retrospective
, Answer "yes" or "no" to state whether a a. Yes
cohort study is best suited for each of the b. No
following scenarios: c. No
d. Yes
a. When little is known about a rare
exposure:
b. When little is known about a rare disease:
c. When the study population will be
difficult to follow:
d. When you want to learn about multiple
effects of an exposure:
T/F: The ideal comparison group in a True
cohort study would, if possible, consist of
exactly the same individuals in the exposed
group had they not been exposed.
A current study that examines lead a. Retrospective cohort study
exposure and prenatal outcomes in a
group of women from 1960 to 1980 would
be considered what type of cohort study?
a. Retrospective cohort study
b. Prospective cohort study
c. Ambidirectional cohort study
d. Concurrent cohort study
It is critical to reduce loss to follow up as c. Loss to follow-up can affect the validity of a study
much as possible in a cohort study
because:
a. Loss to follow-up is a waste of money
b. Loss to follow-up will affect the
reputation of the researcher
c. Loss to follow-up can affect the validity
of a study
You are leading a research team to study c. It is efficient for rare diseases
the association between infection with
Human Papillomavirus (HPV) and the
development of oral cancer in Florida. You
opt to carry out a case-control study.
Which of the following is an advantage of
this study design over a cohort study?
a. It provides temporal information on the
exposure and outcome
b. It uses relative risk as an outcome
measurement
c. It is efficient for rare diseases
d. It is more expensive to conduct than a
cohort study
Terms in this set (54)
Which of the following statements about a. The exposure or treatment is not controlled by the investigator
experimental studies is not correct?
a. The exposure or treatment is not
controlled by the investigator
b. The person doing the research controls
the exposure
c. Study participants are usually randomly
assigned to comparison groups
d. A treatment and its side effects are
evaluated
In an experimental study, I'm selecting a. Non-randomized
controls by assigning people admitted to
the hospital on Monday, Wednesday, and
Friday to treatment group A, and those
admitted on Tuesday, Thursday, and
Saturday to treatment group B. This
selection of study subjects is:
a. Non-randomized
b. Randomized
c. Not easy to manipulate
d. One that eliminates selection bias
,An analysis that includes all subjects who c. Intent-to-treat analysis
were randomized to the treatment and
comparison groups, regardless of whether
they received or completed their assigned
study protocol, is:
a. Run-in period
b. Efficacy Analysis
c. Intent-to-treat analysis
d. Comparability
I'm conducting a randomized trial and it is d. Stratify by age and gender before randomizing
essential that my two groups are
comparable by age and gender. The best
way to ensure that this happens is to:
a. Randomly assign subjects to treatment
groups from the whole population
b. Personally choose exactly which people
will be in each treatment group
c. Assign all the women to the treatment
group and all the men to the comparison
group
d. Stratify by age and gender before
randomizing
An experimental study was conducted b. Individual therapeutic
among adults with Type 2 diabetes in order
to determine if a new medication was more
effective in reducing blood glucose levels
than the currently used medication. What
type of experimental study is this?
a. Individual preventive
b. Individual therapeutic
c. Community preventive
d. Community therapeutic
The Health Professionals Cohort Study b. Prospective
began in 2005 in order to evaluate a series
of hypotheses about men's health relating
nutritional factors to the incidence of
serious illnesses such as cancer, heart
disease, and other vascular diseases. Every
two years, members of the study will
receive surveys with questions about
diseases and health-related topics like
smoking, physical activity, and medications
taken. The surveys that ask detailed dietary
information will be administered in four-
year intervals. What kind of cohort study is
this?
a. Ambidirectional
b. Prospective
c. Experimental
d. Retrospective
, Answer "yes" or "no" to state whether a a. Yes
cohort study is best suited for each of the b. No
following scenarios: c. No
d. Yes
a. When little is known about a rare
exposure:
b. When little is known about a rare disease:
c. When the study population will be
difficult to follow:
d. When you want to learn about multiple
effects of an exposure:
T/F: The ideal comparison group in a True
cohort study would, if possible, consist of
exactly the same individuals in the exposed
group had they not been exposed.
A current study that examines lead a. Retrospective cohort study
exposure and prenatal outcomes in a
group of women from 1960 to 1980 would
be considered what type of cohort study?
a. Retrospective cohort study
b. Prospective cohort study
c. Ambidirectional cohort study
d. Concurrent cohort study
It is critical to reduce loss to follow up as c. Loss to follow-up can affect the validity of a study
much as possible in a cohort study
because:
a. Loss to follow-up is a waste of money
b. Loss to follow-up will affect the
reputation of the researcher
c. Loss to follow-up can affect the validity
of a study
You are leading a research team to study c. It is efficient for rare diseases
the association between infection with
Human Papillomavirus (HPV) and the
development of oral cancer in Florida. You
opt to carry out a case-control study.
Which of the following is an advantage of
this study design over a cohort study?
a. It provides temporal information on the
exposure and outcome
b. It uses relative risk as an outcome
measurement
c. It is efficient for rare diseases
d. It is more expensive to conduct than a
cohort study
