Open AccessDevelopment and validation of the Therapy Preference Scale to understand patients´ systemic cancer treatment preferences
Author(s) -
Vijaya Raj Bhatt,
Prajwal Dhakal,
Christopher Wichman,
Bunny Pozehl
Publication year - 2021
Publication title -
future oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.857
H-Index - 72
eISSN - 1744-8301
pISSN - 1479-6694
DOI - 10.2217/fon-2020-0497
Subject(s) - medicine , preference , context (archaeology) , content validity , scale (ratio) , face validity , systemic therapy , clinical psychology , cancer , psychometrics , quantum mechanics , breast cancer , physics , paleontology , economics , biology , microeconomics
We incorporated questions related to safety, effectiveness and other characteristics of systemic cancer treatment into a self-report questionnaire - the Therapy Preference Scale - that captures patients´ preferences. The authors asked 20 experts to assess content validity and an additional 20 experts, patients and community members to examine face validity and guide revisions. Key revisions included shortening the length, clarifying constructs and providing details to explain the context and trade-offs necessary to balance the risks and benefits of cancer treatment. The content validity index for the final questionnaire was 1.0, indicating that all questions were relevant. Reviewers expressed that the questionnaire would serve an important purpose. Experts, patients and community members guided revisions of the questionnaire and documented its value.