Despite recommendations for formal debriefing training, it is unknown how training improves the application of a debriefing method. To assess the application of Debriefing for Meaningful Learning (DML), the previously tested 31-item DML Evaluation Scale© was modified into the 57-item DML Inventory© (DMLI).The DMLI was completed by 234 participants. Data from the 52 application DMLI items were used to conduct a factor analysis confirming the DMLI as a valid measure of DML.Confirmatory factor analysis demonstrated a good fit for the DMLI data, supporting a six-class DFactor model classified as the six Es of DML.The 52 DMLI application items are a valid measure of DML. Assessment of how debriefing methods are applied after training is needed to advance the science of debriefing practice.