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


METHODS
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.


CONCLUSIONS
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.
Heitzmann
Carolyn A
CA
Department of Psychology, University of Notre Dame, Notre Dame, IN, USA. cheitzm1@nd.edu
Merluzzi
Thomas V
TV
Jean-Pierre
Pascal
P
Roscoe
Joseph A
JA
Kirsh
Kenneth L
KL
Passik
Steven D
SD
D000223:Adaptation, Psychological; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007196:Indiana; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000523:psychology*; D017060:Patient Satisfaction; D011591:Psychology, Medical / Q000379:methods*; D011594:Psychometrics / Q000295:instrumentation; D011788:Quality of Life; D015203:Reproducibility of Results; D020377:Self Efficacy; D012647:Self-Assessment; D012944:Social Support; D013315:Stress, Psychological / Q000209:etiology / Q000523:psychology*; D011795:Surveys and Questionnaires / Q000592:standards*