QuestionSBA
QuestionChoice
A cross-sectional study is an example of an observational study design ie where interventions are not carried out. It involves taking a sample of a population and measuring specific parameters at a single point in time. It is often used to assess disease prevalence.
10004962
b
Cross-sectional study
QuestionChoice
Randomised controlled trial (RCT) is an example of an interventional/experimental study design. It takes two groups of people and randomly allocates each participant to a control group and an intervention group. Over time, participants are followed up and inferences between the two groups are made.
10004961
a
Randomised controlled trial (RCT)
QuestionChoice
A cohort study is an example of an observational study design i.e. where interventions are not carried out. It selects a certain group of participants (cohort) and follows them over time looking forward prospectively. It is commonly used to assess disease risk.
10004964
d
Cohort study
QuestionChoice
A non-randomised intervention study is an example of an interventional/experimental study design. It is similar to randomised controlled trials except there is no randomisation of participants into two groups (control and interventional). Over time, participants are followed up and inferences between the two groups are made.
10004965
e
Non-randomised intervention study
QuestionChoice
A case-control study is an example of an observational study design i.e. where interventions are not carried out. It selects a certain group of participants (cases) and looks back to determine certain characteristics. It is an example of a retrospective study.
10004963
c
Case-control study
Concept
Chapter
2693
4352
Interventional studies
Topic
178
Medical Statistics
13539
A researcher wants to set up a study design between two drugs to assess which one is superior in treating a certain condition.

Which of the following options describes the study design used in the scenario?
a