Encopresis happens more during the day than at night

Which is the best reason to use a quasi-experimental design?

A. A variable of interest may be impossible to randomly assign. B. They are less expensive than other designs. C. Fewer participants are required. D. Large populations can easily be reached.

What term is used to describe a small group that ranges from 2 to about 12 individuals, averages about 5 to 6 individuals, and can form because adolescents engage in similar activities?

Fill in the blank(s) with the appropriate word(s).