Which of the following is NOT one of the operational variables identified?

The operational variables are critical components used to analyze and understand the complexities of an operational environment. Among these variables typically identified are political, military, economic, social (often grouped with human factors), informational, infrastructure, and physical environments. However, psychological is not generally classified as one of the core operational variables.

In this context, the political variable encompasses the influence of government and political systems, while military refers to the capabilities and structure of armed forces. Economic addresses the financial systems and resources available in an area of operation. The psychological aspects, though important in influencing behavior and perceptions, do not constitute a standalone operational variable in the standard framework. This distinction highlights why psychological is the correct choice for an option that is NOT one of the operational variables.