Answer:
The BASC-2 provides T-scores with a mean of 50, with a standard deviation of 10.
For the clinical scales, high scores mean more problems:
T-score of 70+ indicates clinically significant problems; 60-69 means "at risk" of developing clinically significant problems; 41-59 indicates average responses that are indicative of normal behaviour; 31-40 indicates a low level of maladaptive behaviour/problems; < or = to 30 means very low levels of maladaptive behaviour/problems.
For the adaptive scales, low scores mean more problems:
T-score of 30 and below indicates clinically significant problems/maladaptive behaviour; 31-40 means "at risk" of developing clinically significant problems/maladaptive behaviour; 41-59 indicates average responses that are indicative of normal adaptive behaviour; 60-69 indicates a high level of adaptive behaviour; < or = to 30 means very high levels of adaptive behaviour.