ABSTRACT
This chapter is a comprehensive reference manual providing information on the Mayo-Portland Adaptability Inventory-4 (MPAI-4), which is a rating scale that can be completed using clinician, informant or self-ratings. It was designed for the clinical assessment of people with acquired brain impairment (ABI) in the post-acute period, and the evaluation of rehabilitation programmes. The MPAI standardization samples included people with hypoxia, stroke, traumatic brain injury and tumour. Although designed for adults, it has also been used in a paediatric ABI population – also see the updated MPAI manual. A brief history of the instrument's development is provided, along with a description of item content and administration/scoring procedures. Psychometric properties are reviewed and a critical commentary is provided. Key references are cited and in most cases the actual scale is included, giving the reader easy access to the instrument.
