Giftedness researchers have long debated whether there is empirical evidence to support a distinction between giftedness and attained level of achievement. In this paper we propose a general theoretical framework that establishes scientific criteria for acceptable evidence of superior reproducible performance, which any theory of exceptional…

This document contains four papers from a symposium on adult learning in the workplace. The first paper, "Measuring Critical Thinking: Is There a Single Instrument?" (Patricia K. Leitsch, Carol A. Lentz), examines two issues: the relationship between tests measuring critical thinking and those measuring readiness for self-directed…