Jill Is a History Teacher Interested in Whether Differences Exist

Multiple Choice

Jill is a history teacher interested in whether differences exist in motivation to study history between students who are taught concepts sequentially through time and those who are taught concepts by geographic region. Jill's research problem is best described as a study that

A) tests theory.
B) is a replication.
C) is developed thorough library search.
D) comes from personal experiences.