Answer the following statement(s) true (T) or false (F)

1. True experiments require random assignment of subjects to two or more groups.
2. True experiments can have only two comparison groups: an experimental and a control group.
3. A control group receives no treatment in an experiment.
4. All true experiments require a pretest and a posttest.
5. A quasi-experimental design is indicated if subjects are not randomly assigned to comparison groups.

1. True
2. False
3. True
4. True
5. True