Abstract
Aim: Self-concept and identity are impacted by the experience of an acquired brain injury (ABI), often negatively. These changes have been shown to impact on other domains including mood and vocational outcomes. The study aimed to provide practice-based evidence for the effectiveness and acceptability of ‘RE-ID’, a novel vocational rehabilitation group intervention exploring identity after an ABI using an acceptance and commitment therapy (ACT) approach. Method: The study employed an idiographic case series approach, using a mixed methods single case design. Reliable change index and clinically significant change analyses were used to assess changes in self-report measures of self-concept, mood, quality of life, self-esteem, general self-efficacy, and occupational self-efficacy pre to post intervention and at one-month follow-up. Semi-structured follow-up interview data were analysed using deductive thematic analysis. Results: Quantitative outcome measures showed limited change across the intervention. Qualitative data provided preliminary evidence for the potential effectiveness of ‘RE-ID’, with participants reporting change and attributing this change to a combination of ACT therapeutic factors and group process factors. Discussion: The current study provides initial data suggesting that ‘RE-ID’ may be an effective vocational rehabilitation intervention following ABI, and that both the ACT model and the delivery of the intervention in a group format likely contribute to its effectiveness.