"Soldiers in the 21st century must possess the knowledge, skills, and other attributes to perform effectively in complex technical, information-rich environments. This study, Development of a Prototype Self-Assessment Program in Support of Soldier Competency Assessment, was conducted as a counterpart to the U.S. Army Research Institute for the Behavioral and Social Sciences' (ARI) Performance Measures for 21st Century Soldier Assessment (PerformM21). PerformM21 is a 3-year feasibility effort to identify viable approaches for an operational performance assessment system for Army enlisted personnel. In this study, the researchers identified the design and content of a self-assessment system (SAS) that would (a) help Soldiers feel confident about testing, (b) inform Soldiers about the junior noncommissioned officer (NCO) promotion system, and (c) familiarize Soldiers with the duties and responsibilities of NCOs. Information about best practices in the field of self-assessment/test preparation including what is done in the other Armed Services, academia, and the test industry was used to develop a prototype SAS that would explore the realm of test preparation functions, actions, and items that a typical Soldier would encounter during this phase. The prototype SAS reflects PerformM21 test parameters; it is web-based, targeted to E4 Soldiers, and focuses on the Army-wide core assessment."--P. i.