Evaluating real-world uptake of the online Military to Civilian Adjustment and Reintegration Measure among former military members.

Objective: This study evaluated real-world engagement with the online Military to Civilian Adjustment and Reintegration Measure (M-CARM) platform, described user characteristics and usage patterns, and examined score distributions, factor structure and variability in a naturalistic online sample relative to the original validation study. Method: Website analytics (2022-2025) and M-CARM completion data (December 2020-February 2025) were analysed to assess reach, uptake, and engagement. Following data cleaning, 1,101 unique responses were retained. Group differences were examined using t-tests, ANOVAs, chi-square tests, and logistic regression. A confirmatory factor analysis (CFA) evaluated the fit of the hypothesised five-factor structure. Results: The platform received 10,155 site visits with an 11.2% completion rate among users who accessed the assessment page. Users were predominantly male, aged 26-45 and from the Army. The CFA demonstrated acceptable model fit and strong item loadings. Exploratory analyses identified that Navy users had lower total scores and higher odds of Resentment and Regret, and older veterans (56-75) were less likely to meet criteria for this need compared with younger groups. Conclusions: This is the first study to examine real-world engagement with the M-CARM platform, highlighting the M-CARM's translational potential as a scalable, accessible digital tool for identifying reintegration needs among veterans.