This study investigated the relationship between the perceived difficulty of ET use (self-reported using the short version of the Everyday Technology Use Questionnaire, S-ETUQ) and observed ability to use ET (observed using the Management of Everyday Technology Assessment, META) in a sample of people with ABI (n = 81). Data were analysed using a Rasch measurement model, and person measures of perceived difficulty and observed ability to use ET were identified and correlated. Results and conclusions. The person measures had a correlation of 0.49 (p < 0.001). In groups of different severity levels after ABI, significant associations were found in the moderate (0.36) and severe (0.47) disability groups. In the good recovery group, only a non-significant correlation was found (0.21). This indicates that the S-ETUQ and the META measure different but complementary dimensions of ET use. Hence, the assessments are proposed to be used together in clinical practice to more fully understand the ability of people with ABI to use ET.