ABSTRACT
This chapter is a comprehensive reference manual providing information on the Wessex Head Injury Matrix (WHIM), which is an objective, clinician-administered test, with the aims of monitoring the patient’s recovery from the time of coma until emergence from post-traumatic amnesia and facilitating realistic goal-planning for rehabilitation. WHIM was designed for people with traumatic brain injury, particularly those described as “slow-to-recover”, who experience prolonged periods with reduced levels of consciousness. 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.
