A mixed-methods study grounded in Renzulli's Operation Houndstooth Intervention Theory examined the impact of different types of volunteer experiences on the six co-cognitive factors (Optimism, Courage, Romance With a Topic/Discipline, Sensitivity to Human Concerns, Physical/Mental Energy, and Vision/Sense of Destiny) associated with the…

This study examines development along Perry's intellectual and ethical scale among three successive graduating classes of students identified as gifted and talented in mathematics and science. Perry posits that intellectual development proceeds from a basic dualism through nine stages ("positions") and culminates with a sense of personal identify…