What study type is indicated by data collection at only one point in time?

Question

Quizplus · Accepted Answer

Cross-sectional studies collect data at only one point in time and are used to assess the prevalence of a particular health condition or behavior within a population. They are useful for generating hypotheses about possible risk factors or associations with health outcomes but cannot establish causality. Retrospective studies collect data on past events and are also known as case-control studies. Longitudinal studies follow the same group of people over a period of time to assess changes in health or behavior, while prospective studies identify a group of people and follow them forward in time to observe the development of health outcomes.

What Study Type Is Indicated by Data Collection at Only