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Criterion validity of a functional cognitive task in patients with severe traumatic brain injury
Joanne LeBlanc1, Elaine de Guise, Julie Lamoureux
1McGill University Health Centre-Montreal General Hospital, Montreal, Québec, Canada. joanne.leblanc@mcgill.ca
Primary Objective:
To verify criterion validity of measures from a functional cognitive task (FCT) carried out with patients with severe traumatic brain injury (sTBI) at 2-5 years post-injury.
Methods And Procedures:
Forty-six patients with sTBI took part in a long-term outcome study where the FCT and the Neurobehavioural Rating Scale-Revised (NBRS-R) were administered and the FIM™ instrument was rated. The FCT is a telephone information gathering task for evaluating functional cognitive skills.
Results:
Ten of 16 measures of the FCT were significantly correlated with similar or related concepts from the NBRS-R. The FIM™ cognitive score and the individual items of this score were significantly correlated with 13 of the FCT measures and with the percentage of amount of information gathered. Internal consistency was good for 13 of 16 measures. Overall, patients generally had mild difficulty on the FCT concepts.
Conclusion:
The FCT can be used with patients with sTBI to evaluate certain aspects of functional cognition. It has good criterion validity and internal consistency, but additional research is required to further measure reliability and its applicability to other severity of TBI and to other phases of recovery.
