This document outlines an investigation into discrepancies between self-reports and carer ratings on the European Brain Injury Questionnaire (EBIQ) among a clinical sample of brain injury patients. The study analyzes data from 39 patient-carer dyads, highlighting that while overall scores did not differ significantly, notable discrepancies existed in various domains of reported quality of life. The findings confirm the utility of EBIQ in rehabilitation prioritization while emphasizing the need for careful interpretation of questionnaire results.