In a Research Study, the Experimental Group Ate Food That

Multiple Choice

In a research study, the experimental group ate food that contained THC, while the control group ate food that did not contain THC.Both groups were asked to study a list of words and then were asked a week later to recall the words.The results of this experiment indicated that

A) the experimental group remembered less words.
B) the control group remembered less words.
C) there was no statistically significant difference between the two groups in the number of words remembered.
D) the participants were not randomly assigned to the two groups.