A Researcher Tests Whether a New Teaching Method Is More

Multiple Choice

A researcher tests whether a new teaching method is more effective than the old one. What is the RESEARCH hypothesis?

A) The new teaching method is more effective than the old teaching method.
B) The old teaching method is more effective than the new teaching method.
C) There is no difference in effectiveness between the old teaching method and the new teaching method.
D) There is some difference in effectiveness between the old teaching method and the new teaching method, but which is more effective is not predicted.