How data would be collected in prospective observation study

Reference no: EM131411491

A teacher wants to determine how class attendance during the term affects grades on the final exam.
a. Describe how the data would be collected in a prospective observational study.

b. Describe how the data would be collected in a retrospective observational study.

c. Refer to parts (a) and (b). Give one disadvantage for each method of collecting the data in this situation.

Reference no: EM131411491

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