Reliability and validity of the Family Satisfaction Scale with survivors of traumatic brain injury.

For this study, we investigated the reliability and validity of the FSS (Family Satisfaction Scale) in survivors of traumatic brain injury (TBI). The FSS was administered during the 12- and 60-month follow-up interviews. Data analyses included Cronbach's Alpha to determine internal consistency and analysis of variance to determine the relationship of FSS total score to Life Satisfaction Index-A (LSI-A) total scores, marital status, living arrangement, and number of family contacts outside the home. Cronbach's Alphas were 0.94 (12 months, N = 541) and 0.95 (60 months, N = 340). FSS total score and marital status were significantly related at both 12 months (F(3, 534) = 6.04, p < 0.001) and 60 months postdischarge (F(3, 335) = 4.52, p < 0.005). FSS total scores are correlated with the number of family contacts (r(342) = 0.12, p < 0.03) and with LSI-A total scores (r(337) = 0.43, p < 0.001). The FSS has excellent internal consistency with survivors of TBI. We also demonstrated the evidence of convergent validity.