PhD, ABPP, Virginia Commonwealth University
Citation Kreutzer, J. (2000).
The Service Obstacles Scale. The Center for Outcome Measurement
in Brain Injury. http://www.tbims.org/
combi/sos ( accessed
completed by Kolakowsky-Hayner and colleagues (2000) indicate good
internal consistency and criterion-related validity of the Service
internal consistency of SOS items was investigated using Spearman's
rho correlations. All items were positively correlated with each
other with p < .01 for all values. The items regarding satisfaction
with the amount of professional help, good brain injury treatment,
and adequate resources were highly related as indicated by correlations
ranging from .559 to .766. The strength of the correlations between
the transportation item, the money item, and the remaining items
was lower, ranging from .290 to .477.
sets of analyses provided evidence of the criterion-related validity
of the SOS. The SOS items were related to Family Needs Questionnaire
scale scores (Kreutzer & Marwitz, 1989). Correlations were in
the expected directions. Respondents who reported a greater number
of unmet needs were also more likely to report more obstacles to
services and greater dissatisfaction with community resources.
pattern of findings was evident for quality of life ratings (quality
of life was addressed by asking each respondent to answer the question,
"In general, how satisfied are you with your life now?" Responses
were made on a five point Likert-type scale ranging from Very
Dissatisfied to Very Satisfied). Lower quality of life
ratings were associated with reports of more obstacles and lesser
satisfaction with community resources.
analysis indicated that the SOS has three main components. The first
component relates to satisfaction with treatment resources.
Items addressing satisfaction with professional help, brain injury
treatment resources, and quality of care were highly correlated.
Obstacles to receiving services were addressed by the remaining
two SOS items. The second and third SOS components relate to finances
as an obstacle and transportation as an obstacle to receiving
services. Correlational analysis indicated that the two obstacles
items were relatively independent of one another and relatively
independent from the four satisfaction with treatment resources