scenario Nora Would Like to Conduct an Experiment to Determine Whether

scenario
Nora would like to conduct an experiment to determine whether behavior modification techniques can help children eliminate bedwetting. She obtains a sample of children who wet the bed and randomly assigns half to the behavior modification therapy and half to a control group who receive no therapy. After six months, she measures how often children in each group wet the bed.
-Consider the following hypothesis: "If children undergo behavioral modification therapy, then they will have different rates of bedwetting than children in the control group." If this is Nora's hypothesis, then she should use a

A) one-tailed test.
B) two-tailed test.
C) three-tailed test.
D) correlational research design.