Professor Grant Is Interested in Studying the Development of a Sense

Multiple Choice

Professor Grant is interested in studying the development of a sense of humor. She collects data from groups of 6-year-olds, 16-year-olds, 26-year-olds, and 36-year-olds. What type of research design is Professor Grant using?

A) cohort design
B) longitudinal design
C) behavior genetics design
D) cross-sectional design