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.
Copyright © 2016 by the American Occupational Therapy Association, Inc.