EPID 309 Exam 3
A new screening tool is better able to identify people without the disease. This test likely
has higher ________ than the previously used tool. - answerspecificity
Which of the following is NOT conducive to success of a medical screening program? -
answerNOT:
screening inexpensive
NOT: long duration of inapparent disease
NOT: High incidence
A group of persons working on behalf of or strongly supporting a particular cause, such
as an item of legislation, an industry, or a special segment of society is known as: -
answeran interest group
The ability to identify a case as a case is known as - answersensitivity
A new screening test is developed which has a greater sensitivity than the previous
'gold standard' test for breast cancer among women. If nothing else changes, -
answerthe negative predictive value will also go up, because more of the individuals
without abnormal cells will receive a negative test results even though the number of
false negatives doesn't change.
A rapid screening test for syphilis antibodies was performed on a 19 year old, sexually
active patient who presented with acute abdominal pain. The antibody test was reactive,
suggesting the presence of syphilis. Further testing, however, using a more [invasive
but] definitive procedure was negative for syphilis.
The clinic performed an evaluation of the validity of the rapid screening test by
comparing it with the definitive [aka gold standard]: 50 of the rapid screening tests were
reactive and 450 were not reactive. Of the 50 reactive tests, 30 were subsequently
determined by the definitive procedure to be positive. However, 50 of the 450 negative
screening results were determined to be positive by the definitive procedure . -
answer95.2%
Screening for disease involves which type of prevention? - answersecondary
The ability of a measuring instrument to give consistent results in repeated trials is
known as: - answerreliability
, Selective screening involves the screening test to which of the following? - answerhigh
risk groups
Which of the following is (are) an example of "simple" health policy questions that
pertain to the use of screening tests? - answerall of the answers listed
A test which determines whether disease is present is: - answerdiagnostic test
In the surveillance of outbreaks, often those seeking health care and being passively
reported to the system are only a subset of the sick population. This means the data are
likely subject to - answerreporting bias
Determination of the incubation period for a disease outbreak helps to: - answeridentify
possible infectious agents
The time period between initial exposure and a measurable response is known as -
answerlatency
The severity of a disease produced by an infectious agent is referred to as: -
answervirulence
Examples of indirect transmission do not include which of the following: - answerperson-
to-person
Which of the following accurately describes the concept of herd immunity? -
answerNOT:
Populations in modern society have reduced benefit from vaccines because they are
exposed to fewer infectious diseases
NOT: It is easier to vaccinate individuals rather than the entire population
An animate, living insect or other arthropod that is involved with the transmission of
disease agents is a - answervector
Attack rates an example of what measure of frequency? - answerincidence
The term 'epizootic' is the equivalent disease among animals to what term in humans. -
answerepidemic
An individual being vaccinated confers benefits to those around them who cannot be
vaccinated is representing what type of immunity? - answerherd immunity
Foodborne illnesses can be prevented by: - answerWashing hands and surfaces where
food is prepared
A new screening tool is better able to identify people without the disease. This test likely
has higher ________ than the previously used tool. - answerspecificity
Which of the following is NOT conducive to success of a medical screening program? -
answerNOT:
screening inexpensive
NOT: long duration of inapparent disease
NOT: High incidence
A group of persons working on behalf of or strongly supporting a particular cause, such
as an item of legislation, an industry, or a special segment of society is known as: -
answeran interest group
The ability to identify a case as a case is known as - answersensitivity
A new screening test is developed which has a greater sensitivity than the previous
'gold standard' test for breast cancer among women. If nothing else changes, -
answerthe negative predictive value will also go up, because more of the individuals
without abnormal cells will receive a negative test results even though the number of
false negatives doesn't change.
A rapid screening test for syphilis antibodies was performed on a 19 year old, sexually
active patient who presented with acute abdominal pain. The antibody test was reactive,
suggesting the presence of syphilis. Further testing, however, using a more [invasive
but] definitive procedure was negative for syphilis.
The clinic performed an evaluation of the validity of the rapid screening test by
comparing it with the definitive [aka gold standard]: 50 of the rapid screening tests were
reactive and 450 were not reactive. Of the 50 reactive tests, 30 were subsequently
determined by the definitive procedure to be positive. However, 50 of the 450 negative
screening results were determined to be positive by the definitive procedure . -
answer95.2%
Screening for disease involves which type of prevention? - answersecondary
The ability of a measuring instrument to give consistent results in repeated trials is
known as: - answerreliability
, Selective screening involves the screening test to which of the following? - answerhigh
risk groups
Which of the following is (are) an example of "simple" health policy questions that
pertain to the use of screening tests? - answerall of the answers listed
A test which determines whether disease is present is: - answerdiagnostic test
In the surveillance of outbreaks, often those seeking health care and being passively
reported to the system are only a subset of the sick population. This means the data are
likely subject to - answerreporting bias
Determination of the incubation period for a disease outbreak helps to: - answeridentify
possible infectious agents
The time period between initial exposure and a measurable response is known as -
answerlatency
The severity of a disease produced by an infectious agent is referred to as: -
answervirulence
Examples of indirect transmission do not include which of the following: - answerperson-
to-person
Which of the following accurately describes the concept of herd immunity? -
answerNOT:
Populations in modern society have reduced benefit from vaccines because they are
exposed to fewer infectious diseases
NOT: It is easier to vaccinate individuals rather than the entire population
An animate, living insect or other arthropod that is involved with the transmission of
disease agents is a - answervector
Attack rates an example of what measure of frequency? - answerincidence
The term 'epizootic' is the equivalent disease among animals to what term in humans. -
answerepidemic
An individual being vaccinated confers benefits to those around them who cannot be
vaccinated is representing what type of immunity? - answerherd immunity
Foodborne illnesses can be prevented by: - answerWashing hands and surfaces where
food is prepared
