Final answer:
The experimental design involves randomly assigning participants to treatment and control groups. Random assignment reduces systematic differences between groups. The treatment group receives the experimental manipulation, while the control group does not.
Step-by-step explanation:
The experimental design in this scenario involves randomly assigning two men and two women to either a treatment group or a control group. This ensures that each participant has an equal chance of being assigned to either group.
Random assignment is a process where participants are assigned to different groups by chance, reducing the likelihood of systematic differences between the groups.
The treatment group refers to the group of participants who receive the experimental manipulation or treatment being tested, while the control group does not receive the treatment and serves as a baseline for comparison.