Researchers at State University Wanted to Test the Hypothesis That

Multiple Choice

Researchers at State University wanted to test the hypothesis that distributed, or spaced, practice results in better retention of material than massed practice or cramming. To find out if there is a cause-and-effect relationship, the researcher should use:

A) correlational research methods.
B) the experimental method.
C) naturalistic observation.
D) survey or questionnaire research.