a researcher wants to find out whether increased hand washing causes a decreased number of illnesses among staff and children in child care. which research design should the researcher use?

a. observational
b. nonexperimental correlation
c. experimental
d. behavioral

Respuesta :

Answer:

The correct answer is option C: Experimental

Explanation:

Experimental research design is trying to make it as random and versatile as possible.There are three types of experimental research which is true-experimental, quasi-experimental and pre-experimental.