Joe Studied Gender Differences in Attitudes Toward Mathematics and Science

Multiple Choice

Joe studied gender differences in attitudes toward mathematics and science among 45 first grade students. Over the next twelve years, he studied the same 45 children when they were in the fifth, eighth, and twelfth grade. This type of research is called

A) time series research.
B) cross-sectional research.
C) panel study research.
D) case study research.