PIY. Personality Inventory for Youth David Lachar , PhD, and Christian P. Gruber, PhD. The answer to the need for a multidimensional, psychometrically sound self -report instrument designed specifically for young people. What Is the PIY? Personality Inventory for Youth.
Personality Inventory for YouthDavid Lachar, PhD, and Christian P. Gruber, PhD
The PIY is composed of 270 items covering 9 non-overlapping clinical scales and 24 nonoverlappingsubscales.
The 24 subscales reveal more specific clinical content, making the PIY an excellent diagnostic tool.