Validity and reliability of the TechPH scale in assessing Iranian older adults' attitudes toward technology.

Background and aim: Given the rapid technological advancements and increased usage of digital tools, understanding older people's attitudes toward technology is vital. Assessing their views can help identify barriers and facilitators to adoption. This understanding is essential for developing effective educational strategies and user-friendly technologies that enhance seniors' quality of life. Therefore, the present study aimed to psychometrically evaluate the scale for measuring attitudes-both willingness and anxiety-toward technology (TechPH) in Iranian older adults.

Methods: This methodological study was conducted on 420 older individuals (aged 60 and above) in Tehran in 2024 to perform a psychometric test of the attitudes toward technology scale (TechPH). Validation was carried out using translation validity methods, including translation-back translation with bilingual experts (n = 2), face validity with a sample of the older population (n = 10), content validity with a panel of 11 experts, and construct validity through Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) (n = 420). Instrument reliability was determined through test-retest and internal consistency (Cronbach's alpha) methods with a sample of older individuals (n = 30). Data analysis was performed using SPSS version 16 and EQS 6.4 software.

Results: A comparison of Persian and English translations revealed acceptable translation validity and cultural adaptability for the scale. Each item's Content Validity Index (CVI) and Content Validity Ratio (CVR) were determined, with a total average CVI of 0.95. The results of EFA indicated that the sample size was adequate, as shown by the KMO value of 0.754. Additionally, Bartlett's sphericity test demonstrated a significant correlation between the items (χ² = 221.819, df = 15, P < 0.0001). EFA revealed that two extracted factors explained 41.002% and 18.111% of the total variance. Furthermore, CFA yielded suitable estimates based on the general fit indices of the model (RMSEA = 0.061, IFI = 0.979, GFI = 0.983, CFI = 0.978, CMIN/DF = 1.769, MFI = 0.989, AGFI = 0.942). In evaluating test-retest stability and internal consistency, the values of the Intra-class Correlation Coefficient (ICC) and Cronbach's α were 0.85 and 0.77, respectively, indicating appropriate reliability for the scale.

Conclusion: P.TechPH, the first Persian version of the scale for measuring technophilia and technophobia among Iranian older people, has favorable psychometric properties. It can serve as a standard tool for assessing older people's attitudes toward technology in various studies.