Validation of an Independent Living Scale for post-acute rehabilitation applications

The Independent Living Scale (ILS) was developed in a post-acute traumatic brain injury (TBI) rehabilitation facility over a 15-year period to assess three main areas: (1) activities of daily living, (2) behaviour, and (3) initiation. The purpose of this study was to examine the psychometric propert...

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Bibliographic Details
Published in:Brain injury 2001-05, Vol.15 (5), p.435-442
Main Authors: ASHLEY, Mark J, PERSEL, Craig S, CLARK, Michal C
Format: Article
Language:English
Subjects:
Activities of Daily Living
Adult
Behavior
Biological and medical sciences
Brain Injuries - psychology
Brain Injuries - rehabilitation
Female
Humans
Injuries of the nervous system and the skull. Diseases due to physical agents
Male
Medical sciences
Predictive Value of Tests
Psychometrics
Quality of Life
Reproducibility of Results
Sensitivity and Specificity
Surveys and Questionnaires
Traumas. Diseases due to physical agents
Citations: Items that cite this one
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Summary:The Independent Living Scale (ILS) was developed in a post-acute traumatic brain injury (TBI) rehabilitation facility over a 15-year period to assess three main areas: (1) activities of daily living, (2) behaviour, and (3) initiation. The purpose of this study was to examine the psychometric properties of the ILS, including test--retest stability, construct validity, and statistical fit. Statistical analysis was completed on all weekly scores between the years 1986-1995 (n = 5250). A previous study showed ILS inter-rater reliability to be 0.85 and convergent validity 0.82--0.87. This study demonstrated a test--retest stability of 0.72, the Kaiser-Meyer-Olkin Measure of Sampling Adequacy 0.94 (marvelous), and a Bartlett Test of Sphericity result of 'scale items independent'. The ILS was shown to have good construct validity, inter-rater reliability, internal consistency, instrument stability, and convergent validity.
ISSN:0269-9052
1362-301X
DOI:10.1080/02699050010005896