Background and purpose: Self-advocacy is well appreciated but poorly defined concept in oncology.
Methods: The development of the Female Self-Advocacy in Cancer Survivorship (FSACS) Scale's theoretical underpinnings and item development led to evaluations of the measure's content validity and reliability.
Results: The construct of self-advocacy contains 3 subdimensions with 57 Likert-type self-report items. Content validity results (S-CVI = 0.81 and S-CVI/UA = 0.83) indicated strong relevancy of items. Reliability results for each of the 3 subdimensions supported the consistency of the FSACS Scale scores, with strong internal consistency (Cronbach's alphas = .88, .81, and .90) and test-retest reliability (PPMC r = .85, .97, and .88).
Conclusions: The FSACS Scale captures the construct of self-advocacy, and its scores show strong reliability.