Characteristics
Domains assessed:
Prose: Comprehension, Information seeking: Document, Comprehension, Application/function
Specific context:
Cancer
Validation sample population age:
Older Adults: 65+ years, Adults: 18 to 64 years
Modes of administration in validation study:
Paper and pencil
Psychometrics
Number of items:
33
Sample size in validation study:
360
Administration Time (minutes):
15 minutes
Language of validated version:
Mandarin
Main article reference
Chou HL, Lo YL, Liu CY, Lin SC, Chen YC. Development and Psychometric Evaluation of the Cancer Health Literacy Scale in Newly Diagnosed Cancer Patients. Cancer Nursing. 2020; 43(5):E291-E303.
Corresponding author
Hsiu-Ling Chou
Description
The aim of this study was to develop and validate the Cancer Health LIteracy Scale (C-HLs)
Year Measure first Published: 2020
About This Measure
Scoring categories:
Higher total score indicated greater health literacy.
About the Validation of this Measure
Country where validated:
Taiwan
Content validity:
The framework of the C-HLS was based on Leavell and Clark's Levels of Prevention, and the scale items were developed according to Nutbeam's 3 levels of HL. First, the authors conducted 4 focus group interviews to obtain data as a basis for the subsequent development of scale items of C-HLS. The Delphi method was employed, and 13 experts were invited to evaluate the content validity of the C-HLS. The expert validity of each item was reviewed in terms of its appropriateness, necessity, and semantic clarity. The expert panel included oncologists, nurses, case managers, healthcare system managers and experts in the fields of HL and education. In addition, 10 newly diagnosed cancer patients were invited to assess the face validity of the items and rate them for semantic clarity and sentence fluency. Based on the first round of face validity and expert validity evaluations, the C-HLS was revised to have 39 items; that version was then put through the second round of expert validity evaluation. The final version of the C-HLS consisted of 35 items, with 14, 10, and 11 items, respectively, for the 3 levels of HL: functional, interactive, and critical literacy. A cross-sectional design was adopted for large-sample verification of reliability and validity and to assess the receiver operating characteristic (ROC) curve.
Reliability (Cronbach Alpha):
0.82
Reliability notes:
The overall KR-20 Cronbach's alpha of this scale was .82. The split-half (odd-even) correlation coefficient was 0.74. The split-half reliability alpha coefficient corrected using the Spearman-Brown formula was 0.85.
