The CTI is based on Dr Epstein’s Cognitive-Experiential Self-Theory. According to this theory, people have two fundamental adaptive systems: an “experiential system” that automatically learns from lived experience, and a “rational/intellectual system” that operates by conscious reasoning. The CTI measures the efficacy of the experiential system; intelligence tests measure the efficacy of the rational/intellectual system. Note that the CTI cannot be hand-scored. The individual’s responses are entered into the software, and the program scores the protocol and automatically generates a score report with raw scores and gender-based T scores with a profile of the results.