Professor Smith Has Been Studying the Development of Moral Reasoning

Multiple Choice

Professor Smith has been studying the development of moral reasoning in a group of people over the last 30 years.The participants were all 1 year old when she began her study.Professor Smith,who intends to hand off her study to a younger researcher in the department after she retires next year,is conducting a

A) factor analysis.
B) longitudinal study.
C) cross-sectional study.
D) test standardization.