The PIY is a multidimensional, psychometrically sound self-report instrument designed specifically for young people. It is composed of 270 items covering 9 nonoverlapping clinical scales and 24 nonoverlapping subscales.
The 24 subscales reveal more specific clinical content, making the PIY an excellent diagnostic tool. In addition, four validity scales tell you whether the respondent is exaggerating, malingering, or responding defensively, carelessly, or without adequate comprehension. The first 80 items of the test can be used as a screener to quickly identify students who would show problems on the full inventory.