The TMM Triad: An Operational Framework for Evidence-Led Firearms Training

This Evidence Note presents the Technique–Metric–Method (TMM) Triad as an operational framework for evidence-led firearms training. The framework argues that technical instruction, measurement, and training design must function as an integrated system: technique defines the task, metrics make performance observable, and method organizes practice, feedback, progression, and reassessment. The note translates the conceptual contribution of Bearare and Silveira into an applied structure for instructors, schools, and practitioners. It defines the three components, explains their interaction, proposes an implementation workflow, and provides examples of measurable training domains including the handgun draw, accuracy, split times, reloads, malfunction response, movement, and decision-relevant performance. It also distinguishes a repeatable baseline from an isolated best result and discusses the risks of optimizing speed without preserving validity, safety, and task relevance. The document includes a measurement matrix, guidance for selecting useful metrics, a worked application based on the five-run TMM Draw Baseline, limitations of the current framework, and a research agenda addressing reliability, validity, transfer, learning retention, and performance under stress. It is intended as a technical and doctrinal note, not as a substitute for qualified instruction, range rules, legal compliance, or a validated experimental protocol. This is an expanded English-language operational adaptation of Bearare and Silveira's work published in RECIMA21. Additional definitions, application procedures, examples, limitations, and research questions have been developed for the ABA Intl Evidence Note series. The source publication is identified in the related identifiers below.