Study Design Quiz

Which observational study design provides a snapshot of both exposure and outcome at a single time point?

• Descriptive Studies

• Case-Control Studies

• Cross-Sectional Studies

• Cohort Studies

In which type of study are subjects selected based on the presence or absence of an outcome?

• Descriptive Studies

• Case-Control Studies

• Cross-Sectional Studies

• Cohort Studies

What is the primary measure reported in case-control studies?

• Incidence

• Prevalence

• Odds Ratio

• Relative Risk

Which study design is best suited for determining incidence and natural course of a disease?

• Descriptive Studies

• Cross-Sectional Studies

• Case-Control Studies

• Cohort Studies

What is a major disadvantage of case-control studies?

• Prone to bias

• High cost

• Long duration

• Loss of subjects

Which type of observational study is retrospective in nature?

• Cohort Studies

• Cross-Sectional Studies

• Descriptive Studies

• Case-Control Studies

What is the main purpose of observational studies?

• To control variables

• To establish causality

• To conduct experiments

• To generate hypotheses

Which type of observational study is primarily used to assess the relationship between risk factors and health outcomes over time?

• Case-Control Studies

• Cohort Studies

• Cross-Sectional Studies

• Descriptive Studies

What is a key characteristic of cross-sectional studies?

• They follow subjects over a long period

• They collect data at one specific point in time

• They require random assignment of subjects

• They focus on a single case

In which type of observational study are participants selected based on their exposure status?

• Case-Control Studies

• Cohort Studies

• Cross-Sectional Studies

• Descriptive Studies