A cohort can act as an unaccounted factor that changes in sync with the independent variable, making it very difficult to discern what is causing the changes. In other words, a cohort can be a

Which two islands are closest to the mainland asia?

How can congress clarify parts of the constitution that are unclear?

For each of the following examples of data, determine which scale of measurement is used. a) the number of miles joggers run per week. b) the starting salaries of graduates of mba programs c) the months in which a firm's employees choose to take their vacations. d) the final letter grades received by students in a math course.