BIOSTATISTICS FOR THE BIOLOGICAL AND
HEALTH SCIENCES COMPREHENSIVE
EXAMINATION TEST VERIFIED QUESTIONS
AND ACCURATE ANSWERS
●● Epidemiology
Answer: The study of health and illness in human populations, or the
patterns of health and disease and the factors that influence these
patterns
●● Evidence-based medicine
Answer: Once we know the epidemiology of a disease, it is used to
understand the cause of the disease, determine public health policy, and
plan treatment
●● Intervention
Answer: An investigator-controlled maneuver, such as a drug, a
procedure, or a treatment
●● Retrospective study
Answer: The nature of the inquiry is backward in time
●● Prospective study
, Answer: Look forward in time
●● Longitudinal study
Answer: The inquiry cover a period of time
●● Case (experimental group)
Answer: Individuals selected on the basis of some disease or outcome
●● Control (control group)
Answer: Individuals without the disease or outcome
●● Cohort
Answer: A group of people who have something in common and who
remain part of a group over an extended time
●● Controlled trial
Answer: Studies in which the experimental drug or procedure is
compared with another drug or procedure, sometimes a placebo and
sometimes the previously accepted treatment
●● Uncontrolled trial
HEALTH SCIENCES COMPREHENSIVE
EXAMINATION TEST VERIFIED QUESTIONS
AND ACCURATE ANSWERS
●● Epidemiology
Answer: The study of health and illness in human populations, or the
patterns of health and disease and the factors that influence these
patterns
●● Evidence-based medicine
Answer: Once we know the epidemiology of a disease, it is used to
understand the cause of the disease, determine public health policy, and
plan treatment
●● Intervention
Answer: An investigator-controlled maneuver, such as a drug, a
procedure, or a treatment
●● Retrospective study
Answer: The nature of the inquiry is backward in time
●● Prospective study
, Answer: Look forward in time
●● Longitudinal study
Answer: The inquiry cover a period of time
●● Case (experimental group)
Answer: Individuals selected on the basis of some disease or outcome
●● Control (control group)
Answer: Individuals without the disease or outcome
●● Cohort
Answer: A group of people who have something in common and who
remain part of a group over an extended time
●● Controlled trial
Answer: Studies in which the experimental drug or procedure is
compared with another drug or procedure, sometimes a placebo and
sometimes the previously accepted treatment
●● Uncontrolled trial
