This paper presents and extends the definition of scenario complexity in support of the Next-generation Expeditionary Warfare Intelligent Training (NEW-IT) project. First, key concepts are defined with a focus on two specific characteristics: task complexity (Wood, 1986) and task framework (Campbell, 1988). The authors then propose the inclusion of cognitive task elements to the traditional task complexity formulation as an integral extension when designing scenarios for higher-order thinking skills. In addition, the authors introduce the variable of cognitive context moderators to the developing equation. Demonstration of the proposed formulation is then presented with three examples of the instantiation. Finally, operationalization and future direction for scenario-based training are discussed. Copyright 2010 by Human Factors and Ergonomics Society, Inc. All rights reserved
