Which of the following statements is NOT accurate regarding the outcome research that has been conducted on Family Systems Theories?
a. All of the Family Systems Theories appear to be effective.
b. Relatively few studies exist that examine the efficacy of specific Family Systems Theories.
c. Researchers studying the efficacy of Family Systems Theories have typically used controlled clinical trials to do so.
d. Outcome research if difficult to conduct due to the lack of manualized treatment programs for Family Systems Theories.