EPID 309 test 2
If one is concerned with being able to generalize study results to a different population
they are speaking about the study's: - answerexternal validity
The difference between descriptive an analytical epidemiologic studies is best described
as: - answerAnalytical studies can be used to causally connect exposures to outcomes,
where descriptive studies cannot.
An epidemiologist is asked to review Tucson's plans for developing and upgrading bike
lanes and paths. - answerHe agrees. To prepare, he gets data from bicycle accidents in
Tucson to map them over the city and then evaluates the literature on bike lanes and
safety.
A study of 178 cases of disease X were identified from a state registry. A total of 220
control subjects were then recruited from random-digit dial procedure. 16 cases had
been exposed, compared to only 8 controls. How likely were cases to report an
exposure compared with controls? - answertimes as likely
A research team is analyzing the association between leukemia and exposure to
benzene among factory workers. They use the population of Allentown PA for their
study, which has a population of 10,000 people. Out of this, a total of 1,000 factory
workers are recruited into the study (653 males and 347 females). In this sample, 13
individuals have leukemia. A total of 263 of the participants are exposed to benzene in
the workplace; 9 of them have leukemia. Using these data, - answerthey calculate an
Odds Ratio and conclude that there is a positive association, where cases are more
likely to report exposure to benzene.
Random assignment of subjects to study groups helps to control for: - answerBiases
due to confounding
Your Public Health internship preceptor at Pima County Health Department asks you to
collect background data on cancer rates for the US. You start by going to: -
answerSEER
you don't have to worry about external validity in: - answerNone of the above. You have
to worry about external validity in all study designs.
Use of a double blind study design can help reduce - answerinformation bias
You would like to assess the effectiveness and efficiency in delivering health services
through your clinic. After selecting a 10% sample of all patient visits during the past six
months, you are able to characterize the patient population utilizing your clinic in terms
If one is concerned with being able to generalize study results to a different population
they are speaking about the study's: - answerexternal validity
The difference between descriptive an analytical epidemiologic studies is best described
as: - answerAnalytical studies can be used to causally connect exposures to outcomes,
where descriptive studies cannot.
An epidemiologist is asked to review Tucson's plans for developing and upgrading bike
lanes and paths. - answerHe agrees. To prepare, he gets data from bicycle accidents in
Tucson to map them over the city and then evaluates the literature on bike lanes and
safety.
A study of 178 cases of disease X were identified from a state registry. A total of 220
control subjects were then recruited from random-digit dial procedure. 16 cases had
been exposed, compared to only 8 controls. How likely were cases to report an
exposure compared with controls? - answertimes as likely
A research team is analyzing the association between leukemia and exposure to
benzene among factory workers. They use the population of Allentown PA for their
study, which has a population of 10,000 people. Out of this, a total of 1,000 factory
workers are recruited into the study (653 males and 347 females). In this sample, 13
individuals have leukemia. A total of 263 of the participants are exposed to benzene in
the workplace; 9 of them have leukemia. Using these data, - answerthey calculate an
Odds Ratio and conclude that there is a positive association, where cases are more
likely to report exposure to benzene.
Random assignment of subjects to study groups helps to control for: - answerBiases
due to confounding
Your Public Health internship preceptor at Pima County Health Department asks you to
collect background data on cancer rates for the US. You start by going to: -
answerSEER
you don't have to worry about external validity in: - answerNone of the above. You have
to worry about external validity in all study designs.
Use of a double blind study design can help reduce - answerinformation bias
You would like to assess the effectiveness and efficiency in delivering health services
through your clinic. After selecting a 10% sample of all patient visits during the past six
months, you are able to characterize the patient population utilizing your clinic in terms
