As currently used, the RPQ does not meet modern psychometric standards. Its 16 items do not tap into the same underlying construct and should not be summated in a single score. When the RPQ is split into two separate scales, the RPQ-13 and the RPQ-3, each set of items forms a unidimensional construct for people with head injury at three months post injury. These scales show good test-retest reliability and adequate external construct validity.

Objectives. To explore the concept of work instability (WI), a state in which the consequences of a mismatch between an individual's functional abilities and the demands of his or her job could threaten continuing employment if not resolved, in people with rheumatoid arthritis (RA). To develop the Work Instability Scale (WIS). Methods. WI in people with RA was explored through qualitative interviews, which were then used to generate items for the WIS. Results. Through Rasch analysis and validation against a gold standard of expert vocational assessment, a short 23-item, self administered, RA WIS was developed. Conclusion. The WIS can be scored in 3 bands indicating low, medium, and high risk of work disability.

Objective. To develop a new foot impact scale to assess foot status in rheumatoid arthritis (RA) using established qualitative methodology and the latest item response techniques (Rasch analysis).

The Nurse-WIS is a psychometrically sound method for the early identification of nursing staff experiencing difficulties at work. It offers the prospect of positive proactive management to prevent or minimize sickness absence and potentially prevent loss of nursing staff from the workforce through long-term sickness absence and early retirement.

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Objective: Most brain injuries occur in people of working age. Individuals with mild or moderate injuries may have unrecognized problems affecting return to work. Previous studies have focused on factors that predict return to work after brain injury. There is limited information about the experiences of individuals returning to work. Design: Individual interviews explored the work-related expectations and experiences of workers who had sustained mild to moderate brain injury. A sampling frame ensured a spread of participants by age, injury severity and work type. Methods: Thirty-three interviews were conducted 4-6 months post-injury. Most participants had returned to work. Interviews were transcribed verbatim for thematic analysis. Results: Key emerging issues for participants were the invisibility of their injury, continuing symptoms affecting their ability to do their job and lack of advice and guidance on returning to work. Return to work support systems were considered to be poorly coordinated and managed. Conclusion: It is important that healthcare professionals anticipate the vocational rehabilitation needs of patients who have sustained mild to moderate brain injury. These patients may require additional coordinated interventions and specific person-centred information to ensure a successful and, most importantly, a sustained return to work.

The resulting measure is a 36 item, self-administered scale which can be scored in three bands indicating low, medium and high risk of job retention problems. The scale meets modern psychometric requirements for measurement and presents an opportunity in routine clinical practice to take positive action to prevent job loss.

Background: The Work Instability Scale for Rheumatoid Arthritis (RA-WIS) is established and is used by physicians to identify patients at risk of job loss for rapid intervention. The study objective was to explore the concept of Work Instability (a mismatch between an individual's abilities and job demands) in Ankylosing Spondylitis (AS) and develop a Work Instability Scale specific to this population.