Question

An educational researcher used school records to determine that, in one school district, 84% of children living in two-parent homes graduated high school while 75% of children living in single. parent homes graduated high school.

Designed experiment
Retrospective observational study
Prospective observational study

Answer 1

This is a retrospective observational study as the researcher is using pre-existing data from school records to determine the relationship between living arrangements and high school graduation rates.