Cross-cultural adaptation and initial psychometric evaluation of the ClimateMind50+ questionnaire for assessing climate knowledge, concerns, and actions among older adults in Türkiye.

Objective

This study aimed to provide an initial psychometric evaluation of the Turkish version of the ClimateMind50+ questionnaire (T-ClimateMind50+).

Methods

Data were collected from 132 older adults in Türkiye between February and March 2026 using a sociodemographic form and the T-ClimateMind50+. Validity was assessed through content validity, principal component analysis (PCA), confirmatory factor analysis (CFA), and known-groups validity. Reliability was evaluated using Cronbach's alpha, McDonald's omega, item-total correlations, and test-retest analysis.

Results

PCA yielded a three-factor solution explaining 71.847% of the total variance, with factor loadings ranging from 0.536 to 0.891. CFA, conducted as a sensitivity analysis in the same sample, yielded mixed fit indices (CFI = 0.942, IFI = 0.943, TLI = 0.927, NFI = 0.890; RMSEA = 0.085). Cronbach's alpha and McDonald's omega were 0.830 and 0.842 for Climate Change Concern, 0.885 and 0.888 for Perceived Concern Regarding Extreme Weather Events, and 0.894 and 0.900 for Pro-environmental Behaviors, respectively. Three-week test-retest correlations were r = 0.867, 0.804, and 0.608 for factors respectively (p ≤ .004).

Conclusion

The T-ClimateMind50+ provides preliminary evidence of its dimensionality and psychometric properties for assessing climate-related concerns and pro-environmental behaviors among older adults in Türkiye. Further evaluation in larger, independent samples is warranted.