agency. As you go through your fi les you discover that fi ve years

before you took the job the agency selected 100 families and

counseled them using a strict behaviorist model. The agency

took the next group of 100 families and counseled them using

Satir’s experiential conjoint family therapy model. Each family

received 12 sessions of therapy and each family took a before-and

after-assessment that accurately depicted how well the

family was functioning. You decide to run a t test to examine

whether or not a statistically signifi cant difference is evident between

the two approaches. This is