Use the datafile Basc.sav.

The Behavior Assessment Scale for Children (BASC) is a behavior rating scale that is frequently used to measure adult or self-perceptions of many internalizing and externalizing behaviors. Scores on the BASC have an average T-score of 50, with a standard deviation of 10 points, with higher scores indicating greater levels of behavioral symptoms.

Dr. Coors hypothesizes that a behavioral modification intervention he designed will decrease the severity of behavioral manifestations. To test this, he has adults in the participant's home to complete one BASC prior to beginning the intervention, and then again after six months of the intervention, to see if their BASC scores decrease.

Did six months of the intervention produce a significant decrease in patients' BASC scores?