Answer:
type of play; no play
Step-by-step explanation:
Independent variable: Type of play.
In a psychological experiment, an independent variable is the variable that is being changed or manipulated. The change in the independent variable causes a change in the dependent variable.
Control group: No play.
In a psychological experiment, the control group consists of participants who do not get or receive the experimental treatment. These participants are being randomly selected in this group during an experiment.