Assessing self-efficacy for coping with cancer: development and psychometric analysis of the brief version of the Cancer Behavior Inventory (CBI-B)

• Published in: Psycho-oncology (Chichester, England) England), 2011-03, Vol.20 (3), p.302-312
• Main Authors: Heitzmann, Carolyn A., Merluzzi, Thomas V., Jean-Pierre, Pascal, Roscoe, Joseph A., Kirsh, Kenneth L., Passik, Steven D.
• Format: Article
• Language: English
• Subjects: Adaptation; Adaptation, Psychological; Adult; Aged; Aged, 80 and over; Behavior; Cancer; Coping; Discriminant analysis; Factor Analysis, Statistical; Female; Humans; Indiana; Male; Mental depression; Middle Aged; Neoplasms - psychology; Oncology; Patient Satisfaction; Psychology, Medical - methods; Psychometrics; Psychometrics - instrumentation; Quality of Life; Reproducibility of Results; Self Efficacy; Self-Assessment; Selfefficacy; Sickness; Social Support; Stress, Psychological - etiology; Stress, Psychological - psychology; Surveys and Questionnaires - standards
• ISSN: 1057-9249; 1099-1611
• DOI: 10.1002/pon.1735

Objective: The Cancer Behavior Inventory‐Brief Version (CBI‐B), a 12‐item measure of self‐efficacy for coping with cancer derived from the longer 33‐item version, was subjected to psychometric analysis. Method: Participants consisted of three samples: 735 cancer patients from a multicenter CCOP study, 199 from central Indiana, and 370 from a national sample. Samples were mixed with respect to initial cancer diagnosis. Participants completed the CBI‐B and measures of quality of life, optimism, life satisfaction, depression, and sickness impact. Results: Exploratory Factor Analysis with oblique rotation yielded four factors in the first sample: (1) Maintaining Independence and Positive Attitude; (2) Participating in Medical Care; (3) Coping and Stress Management; and (4) Managing Affect, which were confirmed in subsequent samples. Cronbach α coefficient for the 12‐item CBI‐B ranged from 0.84 to 0.88. Validity of the CBI‐B was demonstrated by positive correlations with measures of quality of life and optimism, and negative correlations with measures of depression and sickness impact. Conclusion: The CBI‐B is a valid brief measure of self‐efficacy for coping that could be easily integrated into clinical oncology research and practice, and also used in screening patients. Copyright © 2010 John Wiley & Sons, Ltd.