Primary purpose: There is a need to develop reliable outcome measures to determine well-being after brain injury. In 1997, Teasdale et al. published the European Brain Injury Questionnaire (EBIQ), a self-report and relative-report measure of the subjective experience of cognitive, emotional and social difficulties experienced by people with brain injury. It is now used in several rehabilitation centres as an outcome measure, but its test–re-test reliability has yet not been determined. The primary purpose of the present study is to establish this degree of reliability.

Research design: The EBIQ was administered twice within an ∼1-month period to 50 people with brain injury, to 20 relatives of people with brain injury and to 51 normal controls.

Results: The results showed significant and satisfactory test–re-test reliabilities for all three groups across all nine EBIQ scales (r = 0.55–0.90).

Conclusion: It is concluded that the EBIQ is a clinically reliable measure to determine the subjective well-being of people with brain injury and to assess change of subjective concerns over time.