Professor Wong Measured the Intelligence and Temperament of a Group

Multiple Choice

Professor Wong measured the intelligence and temperament of a group of preschoolers.He plans to follow the same group of participants over time and collect similar data when the children are in 3 grade, 6 grade, and 9 grade.This is an example of which type of research design?

A) sampling design
B) experimental design
C) longitudinal design
D) double-blind experiment