METHOD: This cross-sectional study was conducted on 320 patients with cancer from September to December 2020. After translating the HHI into Persian, content, convergent and discriminant, construct validity (exploratory and confirmatory factor analysis), and reliability of the P-HHI were assessed.
RESULTS: The results of exploratory factor analysis showed that the P-HHI was composed of two factors: Life Expectancy and Thinking Positive, which explained 55.20% of the total variance.
SIGNIFICANCE OF RESULTS: The research revealed that the P-HHI has acceptable validity and reliability, which can be used to measure the hope concept among Iranian patients with cancer.