The Computerized Decision Training (CDT) system, which focuses on improving and sharpening higher order cognitive skills in judgmental decision making, incorporates an adaptive computer program which learns the student's value structure, and uses this structure to train the student in practical decision making. The application of decision models in training is described, as well as features of the CDT system as it is applied in electronic trouble-shooting. Evaluations indicate that the adaptive decision model accurately models the student's performance and that the adaptively-selected instructions sometimes improve troubleshooting performance. (Author/CMV)