Can you explain the difference between longitudinal and cross-sectional studies?
Sure! Longitudinal studies track the same subjects over a period of time, while cross-sectional studies analyze data from a population at a single point in time.
What are some examples of longitudinal studies?
Examples include tracking health outcomes in a group of people over several years or studying the same cohort of students throughout their education.
And what about cross-sectional studies?
Cross-sectional studies might include surveys that assess the health status of a population at one specific time, like a census.
Which type of study is better for establishing cause and effect?
Longitudinal studies are generally better for establishing cause and effect because they observe changes over time.
Are there any limitations to these study types?
Yes, longitudinal studies can be time-consuming and expensive, while cross-sectional studies may not capture changes over time.
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