Cohort study:
A cohort study is a longitudinal study that identifies a group of subjects sharing some attributes (a “cohort”) then takes measurements on the subjects at various points in time and records data for the group. A cohort study is often used to compare two groups over time, e.g. those who had treatment A for a condition, and those who had treatment B.
Planning on taking an introductory statistics course, but not sure if you need to start at the beginning? Review the course description for each of our introductory statistics courses and estimate which best matches your level, then take the self test for that course. If you get all or almost all the questions correct, move on and take the next test.
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