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Incremental validity of the MMPI-2 Content Scales: a preliminary study with brain-injured patients
A Palav1, A Ortega, R J McCaffrey
1University at Albany, State University of New York, Albany, New York 12222, USA.
Objective:
To examine the usefulness of the MMPI-2 Content Scales among traumatic brain injury (TBI) patients.
Design:
Hierarchical stepwise regression analyses with the SCL-90-R scales as the criterion variables were conducted to determine the incremental validity of the Content Scales beyond the information provided by the Clinical Scales.
Participants:
27 persons with moderate to severe TBI who had been discharged to the community from inpatient 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 Scales.
Conclusions:
Interpretation of the Content Scales may be particularly valuable with TBI patients, because they provide an additional avenue for the identification of distressing symptoms.