• Emine Iyigun, Sevinc Tastan, Elif Gezginci, Serap Korkmaz, Selcuk Demiral, and Murat Beyzadeoglu.
• University of Health Sciences, Gulhane School of Nursing, Ankara/Turkey.
• J Pain Symptom Manage. 2017 Aug 11.

ContextCancer Behavior Inventory-Brief Version is a simple and non-burdensome tool used to evaluate the self-efficacy of the cancer patients.ObjectivesThe aim of this study was to examine the psychometric properties of the Turkish version of the Cancer Behavior Inventory-Brief Version.MethodsThis methodological study was conducted on 143 cancer patients who received radiotherapy at the Department of Radiation Oncology at a Training and Research Hospital in Turkey. Data were collected using Medical and Demographic Information Form, Cancer Behavior Inventory-Brief Version (CBI-B), Satisfaction with Life Scale (SWLS), and EORTC QLQ-C30. Descriptive statistics, Exploratory Factor Analysis, correlation coefficients were used for the analysis of data.ResultsExploratory Factor Analysis confirmed four-factor structure explaining 74.7% of the total variance: (1) Maintaining Independence and Positive Attitude; (2) Participating in Medical Care; (3) Coping and Stress Management; and (4) Managing Affect. The CBI-B had acceptable internal consistency (Cronbach's α= 0.87) and test-retest reliability (intraclass correlation coefficient= 0.961) and concurrent validity with SWLS and EORTC QLQ-C30 scores. The measures of life satisfaction and quality of life were positively correlated with CBI-B whereas the symptom levels and the functions (with the exception of the role function) were negatively correlated.ConclusionThe CBI-B was found to be a valid and reliable inventory for assessing the self-efficacy of Turkish cancer patients. The CBI-B, is a simple and brief measure of self-efficacy for coping with cancer, could be easily used in clinical and research settings.Copyright © 2017. Published by Elsevier Inc.

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