The Boston Assessment of Traumatic Brain Injury Lifetime, Second Edition (BATL-2): Development and Initial Psychometric Evaluation in Post-9/11 Military Veterans

Results indicate that the BATL-2 is a valid and reliable measure of retrospective TBI diagnosis. Importantly, BATL-2 provides continuity of evidence-based assessment of TBI, including forward compatibility with updated field TBI diagnostic criteria while maintaining backward compatibility with BAT-L and previous TBI guidelines. The BATL-2 improves retrospective brain injury characterization by reducing administration time burden, assessing repetitive head impacts (RHI) and military occupational blast exposures (MOBE), and incorporating updated field standards.