Answer:
The group seeing the movie without the soundtrack is the experimental group.
Explanation:
In experimental research there are two groups, the experimental and the control group. In the control group, there are no manipulated variables, in this case, the control group is the one that watched the movie without the soundtrack.
In the experimental group, the independent variable is manipulated, and the results of the group are compared to those of the control group. In this case, the experimental group is the one that watches the movie with the soundtrack on; the manipulated variable is the soundtrack.
