EPIDEMIOLOGY MIDTERM NR503 2026 TEST
PAPER SOLVED QUESTIONS AND SOLUTIONS
◉ Validity. Answer: The ability of that test to distinguish correctly
who has a disease
◉ Continuous variable screening. Answer: not (+) or (-)
A continuum of values
Population "normal" is a range of normal values
Considered positive when they have a specific value or level to their
screening test.
◉ Positive predictive value. Answer: true positive/everyone that has
been tested
people in a population who are screened as (+) and who actually
have the disease
, ◉ Negative predictive value. Answer: true negatives/everyone that
has been tested
◉ Where to find a screening tool?. Answer: US Preventative Services
Task Force
Agency for Healthcare Research & Quality
SAMHSA-HRSA
◉ Descriptive Epidemiology. Answer: Natural History of Disease
defines differences, similarities, and correlation keys of any health
problems
Time and place
Learns extent and pattern of the public health problem being
investigated
Detailed description of the health of a population by using tables,
graphs and maps
PAPER SOLVED QUESTIONS AND SOLUTIONS
◉ Validity. Answer: The ability of that test to distinguish correctly
who has a disease
◉ Continuous variable screening. Answer: not (+) or (-)
A continuum of values
Population "normal" is a range of normal values
Considered positive when they have a specific value or level to their
screening test.
◉ Positive predictive value. Answer: true positive/everyone that has
been tested
people in a population who are screened as (+) and who actually
have the disease
, ◉ Negative predictive value. Answer: true negatives/everyone that
has been tested
◉ Where to find a screening tool?. Answer: US Preventative Services
Task Force
Agency for Healthcare Research & Quality
SAMHSA-HRSA
◉ Descriptive Epidemiology. Answer: Natural History of Disease
defines differences, similarities, and correlation keys of any health
problems
Time and place
Learns extent and pattern of the public health problem being
investigated
Detailed description of the health of a population by using tables,
graphs and maps
