EPID 309- Exam 2 2026
When conducting a case control study, researchers enroll participants based on disease
status - answer True
A case control study is useful for the investigation of rare exposures - answer False
In epidemiology, the key part of an analytic study is - answer Use of an appropriate
comparison group
What information about the study outcome is collected in the future, this is known as a -
answer prospective study
In a case control study of sudden infant death syndrome (SIDS), you believe that
maternal smoking is an important risk factor. Your cases were recruited from Arizona
using Death Certificates. Of the following, the best controls would be - answerNon-
SIDS infant deaths in Arizona
Investigators in Arizona conducted a study to compare measles-mumps-rubella (MMR)
vaccine history among 1,294 children with Autism spectrum disorders and 4,469
children without these disorders. This is an example of which study design? -
answerCase-control
Ignaz Semmelweis - answerHungarian physician
shows handwashing reduces transmission of Childbed Fever (institutes handwashing
which lowers rates of infection)
Participants are selected for a case control study based on their exposure status -
answerFalse
Registries can be used to select patients for case control studies - answerTrue
If one is concerned with being able to generalize study results to a different population
they are speaking about the study's - answerexternal validity
Comparing persons with symptomatic versus asymptomatic Chlamydia infection to
identify predictors is an example of - answeranalytical epidemiology
In a case control study of prostate cancer you believe that smoking is an important risk
factor. Your cases were recruited from UMC prostate cancer patients using a provider
administered survey. Of the following, the best controls would be - answerNon- prostate
cancer patients at UMC
, Researchers compare the prevalence of obesity and the average walk ability scores of
Tucson and Phoenix. What type of study design did they use? - answerecological
A case control study can be completed in a relatively short period of time - answerTrue
an ecological study does NOT provide enough information to conclude an exposure is a
cause of a disease. - answerTrue
Case control studies are best characterized by - answerstarting with a group of cases
the ecological fallacy is - answerwhen you assume the results of population level
associations apply to individuals
some of the passengers on a cruise ship developed a gastrointestinal illness compatible
with norovirus. Testing for this pathogen is not readily available in any nearby island or,
where available take several days to get results. As an epidemiologist, you are called on
board to investigate this possible outbreak, your CASE DEFINITION should include, at
a minimum: - answerNOT: clinical features (symptoms), plus exposure(s) you most
suspect
An epidemiologist wants to determine if the recent outbreak of salmonella in Gilbert,
Arizona resulted from eating at Los Favoritos Burritos. She composes a sample by
taking 20 people from Gilbert who have salmonella. She decides to match each of them
with another person from Gilbert who is equivalent in respect to age and gender but
does not have salmonella. Each of the 40 participants are asked about any recent visits
to Los Favoritos. This study design is: - answerCase control study
Analytical epidemiology involves describing the occurrence of disease in populations -
answerFalse
Random assignment of subjects to study groups helps to control for: - answerBiases
due to confounding
The lowest dose at which a particular response occurs is known as the: -
answerThreshold
An endemic disease is one which - answeris habitually present in a community,
geographic area, or population group
A study that was conducted in a nursing home to examine the association of hand
washing and gastro-enteritis. Residents with the disease were recruited and others from
the nursing home without the disease were subsequently selected. This kind of study is
known as: - answerCase control study
A group of women with stage I breast cancer were recruited and randomized to receive
either lumpectomy alone or lumpectomy with breast radiation. the women were then
When conducting a case control study, researchers enroll participants based on disease
status - answer True
A case control study is useful for the investigation of rare exposures - answer False
In epidemiology, the key part of an analytic study is - answer Use of an appropriate
comparison group
What information about the study outcome is collected in the future, this is known as a -
answer prospective study
In a case control study of sudden infant death syndrome (SIDS), you believe that
maternal smoking is an important risk factor. Your cases were recruited from Arizona
using Death Certificates. Of the following, the best controls would be - answerNon-
SIDS infant deaths in Arizona
Investigators in Arizona conducted a study to compare measles-mumps-rubella (MMR)
vaccine history among 1,294 children with Autism spectrum disorders and 4,469
children without these disorders. This is an example of which study design? -
answerCase-control
Ignaz Semmelweis - answerHungarian physician
shows handwashing reduces transmission of Childbed Fever (institutes handwashing
which lowers rates of infection)
Participants are selected for a case control study based on their exposure status -
answerFalse
Registries can be used to select patients for case control studies - answerTrue
If one is concerned with being able to generalize study results to a different population
they are speaking about the study's - answerexternal validity
Comparing persons with symptomatic versus asymptomatic Chlamydia infection to
identify predictors is an example of - answeranalytical epidemiology
In a case control study of prostate cancer you believe that smoking is an important risk
factor. Your cases were recruited from UMC prostate cancer patients using a provider
administered survey. Of the following, the best controls would be - answerNon- prostate
cancer patients at UMC
, Researchers compare the prevalence of obesity and the average walk ability scores of
Tucson and Phoenix. What type of study design did they use? - answerecological
A case control study can be completed in a relatively short period of time - answerTrue
an ecological study does NOT provide enough information to conclude an exposure is a
cause of a disease. - answerTrue
Case control studies are best characterized by - answerstarting with a group of cases
the ecological fallacy is - answerwhen you assume the results of population level
associations apply to individuals
some of the passengers on a cruise ship developed a gastrointestinal illness compatible
with norovirus. Testing for this pathogen is not readily available in any nearby island or,
where available take several days to get results. As an epidemiologist, you are called on
board to investigate this possible outbreak, your CASE DEFINITION should include, at
a minimum: - answerNOT: clinical features (symptoms), plus exposure(s) you most
suspect
An epidemiologist wants to determine if the recent outbreak of salmonella in Gilbert,
Arizona resulted from eating at Los Favoritos Burritos. She composes a sample by
taking 20 people from Gilbert who have salmonella. She decides to match each of them
with another person from Gilbert who is equivalent in respect to age and gender but
does not have salmonella. Each of the 40 participants are asked about any recent visits
to Los Favoritos. This study design is: - answerCase control study
Analytical epidemiology involves describing the occurrence of disease in populations -
answerFalse
Random assignment of subjects to study groups helps to control for: - answerBiases
due to confounding
The lowest dose at which a particular response occurs is known as the: -
answerThreshold
An endemic disease is one which - answeris habitually present in a community,
geographic area, or population group
A study that was conducted in a nursing home to examine the association of hand
washing and gastro-enteritis. Residents with the disease were recruited and others from
the nursing home without the disease were subsequently selected. This kind of study is
known as: - answerCase control study
A group of women with stage I breast cancer were recruited and randomized to receive
either lumpectomy alone or lumpectomy with breast radiation. the women were then
