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Updated: Mar 19, 2026

Assessment and Communication for People with Disorders of Consciousness
Published on: August 1, 2017
Assessing Therapeutic Communication During Rehabilitation: The Clinical Assessment of Modes
Chia-Wei Fan1, Renée R Taylor2
1Chia-Wei Fan, PhD, is Departmental Research Affiliate, Department of Occupational Therapy, University of Illinois at Chicago.
Objective:
This study applied Rasch analysis to test four versions of the Clinical Assessment of Modes (CAM), an assessment based on Taylor's Intentional Relationship Model: CAM-P, which assesses clients' pretreatment preferences; CAM-E, clients' treatment experience; CAM-T, therapists' self-reported perspective; and CAM-O, an observer rating scale.
Method:
The CAM-P was administered to 63 inpatients. The CAM-E was administered to 110 inpatients and outpatients. Trained raters rated therapists' modes with 59 inpatients and outpatients on the CAM-O. The CAM-T was administered to 38 therapists. Analyses of reliability and validity were conducted.
Results:
The CAM demonstrated adequate construct validity. All versions showed acceptable internal consistency and unidimensionality within each of the subscales. Disorder between the 5 points on the ordinal rating scale was found for the client measures (CAM-P, CAM-E) and was resolved by modifying the ratings to encompass a 4-point scale.
Conclusion:
The four CAM versions are reliable and valid measures of therapeutic communication in rehabilitation.
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