Professor Smith has been studying the development of moral reasoning in a group of people over the last 30 years. All of her participants were 1 year old when she began her study. She intends to hand off her study to a younger researcher in the department after she retires next year. Professor Smith is conducting a:________.a. fluid study.b. longitudinal study.c. cross-sectional study.d. cohort study.
This is a research design that involves repeated observations of the same subjects over a short or long periods of time. As in the above, the same subjects have been studied since they were 1 year old.
