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[The neurobehavioral rating scale-revised: assessment of concurrent validity]
S Soury1, J M Mazaux, J Lambert
1Unité UEROS, service MP réadaptation, hôpital Pellegrin, CHU de Bordeaux, 33076 Bordeaux, France.
Summary
The Neurobehavioral Rating Scale-Revised (NRS-R) demonstrates fair concurrent validity in traumatic brain injury (TBI) patients, correlating well with cognitive and emotional assessments. This supports its use in evaluating TBI-related impairments.
Area of Science:
- Neuroscience
- Psychology
- Rehabilitation Medicine
Background:
- Traumatic brain injury (TBI) frequently causes cognitive and behavioral impairments, significantly impacting daily living.
- The Neurobehavioral Rating Scale-Revised (NRS-R) is a brief, clinician-administered tool for assessing these impairments.
- While the English NRS-R has established validity and reliability, the concurrent validity of its French version needed documentation.
Purpose of the Study:
- To evaluate the concurrent validity of the French version of the NRS-R.
- To compare NRS-R scores with established psychometric tests measuring cognitive function, anxiety, and depressive mood.
Main Methods:
- One hundred and four TBI patients were assessed using the NRS-R, cognitive tests (memory, attention, executive functions), and scales for anxiety (STAI) and depression (CES-D).
- Intercorrelations were analyzed between NRS-R factors (intentional behavior, emotional state, arousal, language) and psychometric test results.
- Patient demographics included 82 men, 22 women, mean age 28.5 years, with 70% severe TBI (GCS < 8), assessed an average of 52 months post-injury.
Main Results:
- NRS-R factors showed significant correlations with various cognitive tests (e.g., Tower of London, Trail Making Test, divided attention) and injury severity indicators (e.g., GCS, time since injury).
- Factor scores were also related to anxiety (STAI) and depressive mood (CES-D) scores.
- The total NRS-R score correlated with cognitive tests, emotional scales, and time since injury.
Conclusions:
- Significant relationships were observed between NRS-R factor scores and cognitive/emotional measures, similar to findings for the English version.
- Correlations with injury severity and time since injury further support the scale's utility.
- These findings suggest that the French NRS-R possesses fair concurrent validity for assessing TBI-related neurobehavioral impairments.