A. Palav et al., Incremental validity of the MMPI-2 content scales: A preliminary study with brain-injured patients, J HEAD TR R, 16(3), 2001, pp. 275-283
Objective: To examine the usefulness of the MMPI-2 Content Scales among tra
umatic brain injury (TBI) patients. Design: Hierarchical stepwise regressio
n analyses with the SCL-90-R scales as the criterion variables were conduct
ed to determine the incremental validity of the Content Scales beyond the i
nformation provided by the Clinical Scales. Participants: 27 persons with m
oderate to severe TBI who had been discharged to the community from inpatie
nt rehabilitation between 6 months and 4 years before the beginning of the
study. Results: The Content Scales accounted for an additional 4% to 36% of
the variance of SCL-90-R scales beyond that predicted by the Clinical Scal
es. Conclusions: interpretation of the Content Scales may be particularly v
aluable with TBI patients, because they provide an additional avenue for th
e identification of distressing symptoms.