title: Assessing self-efficacy for coping with cancer: development and psychometric analysis of the brief version of the Cancer Behavior Inventory (CBI-B).
abstract: 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.
authors.affiliation: Department of Psychology, University of Notre Dame, Notre Dame, IN, USA. cheitzm1@nd.edu
authors.forename: Carolyn A
authors.initials: CA
authors.lastname: Heitzmann
authors.forename: Thomas V
authors.initials: TV
authors.lastname: Merluzzi
authors.forename: Pascal
authors.initials: P
authors.lastname: Jean-Pierre
authors.forename: Joseph A
authors.initials: JA
authors.lastname: Roscoe
authors.forename: Kenneth L
authors.initials: KL
authors.lastname: Kirsh
authors.forename: Steven D
authors.initials: SD
authors.lastname: Passik
mesh_terms: 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*