Development of a self-efficacy instrument for coronary artery bypass graft patients.
Research related to self-efficacy has demonstrated that measures of this concept need to be specific to the behavior of interest. Self-efficacy is the degree of confidence one has to perform an activity. This article describes the development and testing of the Barnason Efficacy Expectation Scale (BEES). The instrument is a 15-item tool that uses a Likert scale to determine the coronary-artery-bypass-graft (CABG) patient's self-efficacy related to the risk-reduction-related aspects of recovery and lifestyle adjustment following CABG surgery (physical functioning, psychosocial functioning, coronary artery disease risk factor modification and self-care management). Internal consistency reliability of the instrument was 0.93, and principal components analysis revealed a single factor (Eigenvalue = 10.59, percent variance = 70.61%). Three phases of tool development are described in the article that document satisfactory reliability and validity (face, content, criterion, and construct).
Barnason
Susan
S
University of Nebraska Medical Center, Lincoln, NE, USA.
Zimmerman
Lani
L
Atwood
Jan
J
Nieveen
Janet
J
Schmaderer
Myra
M
D000203:Activities of Daily Living; D000368:Aged; D001026:Coronary Artery Bypass / Q000523:psychology* / Q000534:rehabilitation*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009730:Nursing Assessment / Q000379:methods*; D015203:Reproducibility of Results; D012648:Self Care; D020377:Self Efficacy; D014481:United States