A social worker running a home for delinquent children wishes to show that the home is successful in reducing delinquency. Twelve adolescents who have been declared delinquent are selected for the...

A social worker running a home for delinquent children wishes to show that the home is successful in reducing delinquency. Twelve adolescents who have been declared delinquent are selected for the investigation. The number of days of truancy during the month prior to placement in the home is measured. Similarly, the number of days of truancy during the month they live in the home, and the number of days of truancy during the month after they leave the home, are recorded. What do you conclude?