PURPOSE: This study aims to evaluate the psychometric properties of the Farsi version of the meaning of life questionnaire in patients with cancer.
METHOD: In this cross-sectional study, after translating the questionnaire to Farsi, in a sample of 212 patients with cancer, feasibility, content and convergent validity, exploratory and confirmatory factor analysis, internal consistency, stability, and responsiveness were evaluated.
RESULTS: The results show that the content validity ratio of all ten items was greater than 0.49. Also, the modified Kappa coefficient of each item was greater than 0.6. The maximum likelihood exploratory factor analysis extracted one factor, which explains 76.13% of the total variance of the sample. Item nine was removed. The confirmatory factor analysis results show that the one-factor model had good fit indices. The Cronbach's alpha, McDonald's omega, composite reliability, MaxR, and intraclass correlation coefficient were 0.96, 0.96, 0.96, 0.96, and 0.98, respectively. The questionnaires had responsiveness and its response time was 3 s.
CONCLUSION AND POLICY SUMMARY: The nine-item Farsi version of the meaning of life questionnaire has good validity and reliability and responsiveness.
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.