Development of a self-efficacy scale for mammography.
Mammography screening has been demonstrated to decrease mortality from breast cancer. Although adherence rates have increased, there is still a need to increase annual screening. Self-efficacy is a construct that has been found useful in predicting behaviors. Measurement of self-efficacy needs to be specific to the behavior and to have good validity and reliability. The purpose of this study is to describe development of a self-efficacy instrument to measure confidence in obtaining a mammogram. Bandura's model guided item development. Construct validity was measured using confirmatory factor analysis and logistic regression. Cronbach alpha was used to test internal consistency reliability. A Cronbach alpha coefficient of .87 was obtained. The mammography self-efficacy scale evidenced content and construct validity.
Champion
Victoria
V
Indiana University, School of Nursing, Indianapolis, IN, USA.
Skinner
Celette Sugg
CS
Menon
Usha
U
D000368:Aged; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000451:nursing / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008327:Mammography / Q000523:psychology / Q000706:statistics & numerical data*; D008875:Middle Aged; D008923:Missouri; D010342:Patient Acceptance of Health Care / Q000523:psychology*; D011594:Psychometrics; D015203:Reproducibility of Results; D020377:Self Efficacy; D011795:Surveys and Questionnaires / Q000592:standards*