WGU BSN HEALTHCARE RESEARCH &
STATISTICS Q & A WITH RATIONALES
2024/2025
meta-analysis - ANSWER-a procedure for statistically combining the results of many different individual
research studies
systematic review - ANSWER-a summary of the clinical literature. hint research paper
randomized controlled trial - ANSWER-An experimental study in which researchers randomly assign
individuals to either an experimental or a control group and expose the experimental group to the
manipulated variable of interest.
case control study - ANSWER-Observational study where 2 people differing in outcome are identified
and compared to find a causal factor
cohort study - ANSWER-A type of epidemiologic study where a group of exposed individuals (individuals
who have been exposed to the potential risk factor) and a group of non-exposed individuals are
followed over time to determine the incidence of disease
cross-sectional study - ANSWER-A study in which a representative cross section of the population is
tested or surveyed at one specific time.
case report/case study - ANSWER-a report on one or just a few patients with no control group
Qualitative studies - ANSWER-research that derives from observation or verbal interaction and focuses
on meaning
quantitative studies - ANSWER-research that uses numerical analysis
Epidemiology - ANSWER-the branch of medicine that deals with the incidence, distribution, and possible
control of diseases and other factors relating to health.
STATISTICS Q & A WITH RATIONALES
2024/2025
meta-analysis - ANSWER-a procedure for statistically combining the results of many different individual
research studies
systematic review - ANSWER-a summary of the clinical literature. hint research paper
randomized controlled trial - ANSWER-An experimental study in which researchers randomly assign
individuals to either an experimental or a control group and expose the experimental group to the
manipulated variable of interest.
case control study - ANSWER-Observational study where 2 people differing in outcome are identified
and compared to find a causal factor
cohort study - ANSWER-A type of epidemiologic study where a group of exposed individuals (individuals
who have been exposed to the potential risk factor) and a group of non-exposed individuals are
followed over time to determine the incidence of disease
cross-sectional study - ANSWER-A study in which a representative cross section of the population is
tested or surveyed at one specific time.
case report/case study - ANSWER-a report on one or just a few patients with no control group
Qualitative studies - ANSWER-research that derives from observation or verbal interaction and focuses
on meaning
quantitative studies - ANSWER-research that uses numerical analysis
Epidemiology - ANSWER-the branch of medicine that deals with the incidence, distribution, and possible
control of diseases and other factors relating to health.
