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Clin Rehabil. 2009 Apr;23(4):362-70. doi: 10.1177/0269215508101742. Epub 2009 Jan 29.

Goal attainment scaling (GAS) in rehabilitation: a practical guide.

Author information

1
Kings college London, School of Medicine, Regional Rehabilitation Unit, Northwick Park Hospital, Harrow, UK. lynne.turner-stokes@dial.pipex.com

Erratum in

  • Clin Rehabil. 2010 Feb;24(2):191.

Abstract

Goal attainment scaling is a mathematical technique for quantifying the achievement (or otherwise) of goals set, and it can be used in rehabilitation. Because several different approaches are described in the literature, this article presents a simple practical approach to encourage uniformity in its application. It outlines the process of setting goals appropriately, so that the achievement of each goal can be measured on a 5-point scale ranging from -2 to +2, and then explains a method for quantifying the outcome in a single aggregated goal attainment score. This method gives a numerical T-score which is normally distributed about a mean of 50 (if the goals are achieved precisely) with a standard deviation of around this mean of 10 (if the goals are overachieved or underachieved). If desired, the approach encompasses weighting of goals to reflect the opinion of the patient on the personal importance of the goal and the opinion of the therapist or team on the difficulty of achieving the goal. Some practical tips are offered, as well as a simple spreadsheet (in Microsoft Excel) allowing easy calculation of the T-scores.

PMID:
19179355
DOI:
10.1177/0269215508101742
[Indexed for MEDLINE]

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