Considering the importance of attitudes toward technology among elderly people, the present study was conducted with the aim of psychometrically testing the Persian version of the TechPH scale and providing a valid and reliable instrument for the Iranian population. The various psychometric properties of the instrument, including face, content, and construct validity, as well as reliability, were investigated in the elderly community of Tehran. The scale translation, which was performed by bilingual experts in a double-blind manner, is very similar to the original version, which shows that this tool has cross-cultural application and good efficiency in different societies. Additionally, the demographic findings showed that the participants in the present study were not different from all the elderly individuals in terms of the gender ratio. In this case, it seems that more realistic results were obtained from the evaluations performed. In the next step, the purpose of evaluating content validity is to answer the question of whether the content of the tool is capable of measuring the defined goal. For this reason, the judgment of experts, under the title of an expert panel, is used in the specialized field, and the relevance, simplicity, and clarity of each item as well as their necessity are in the form of a questionnaire that the panel of experts asked [24, 26]. In this research, the CVRs obtained for each item are greater than the values suggested in the Lawshe table [25]. Additionally, a CVI of 0.95 was obtained, which is more than the acceptable value for the items (0.79 and above) [24]. Therefore, the Farsi version of the TechPH has adequate content validity. Face validity is an objective judgment about the structure of an instrument and determines whether the scale has been accepted by respondents [27]. Therefore, according to the feedback of the elderly participants, very minor changes were made to make the items more understandable. However, in general, it was very similar to the original version. Construct validity addresses the issue of whether the desired structure has the ability to measure the set goal. This type of validity is also called factor validity due to the method of evaluation with factor analysis methods. Among the common methods for calculating construct validity are exploratory and confirmatory factor analyses. EFA is an exploratory statistical method whose purpose is to discover dimensions [24, 28]. The EFA results were obtained from the KMO and Bartlett's sphericity tests. The KMO value was 0.754, which, according to the acceptable value defined for KMO (0.7 and above) [29], confirmed the adequacy of the sample size in this research, and the results of Bartlett's sphericity test showed a significant correlation between the items. (χ2 = 221.819, df = 15, P < 0.001) [30]. The psychometric properties of the TechPH have been investigated thus far only in Sweden. The results of Anderberg et al.'s study, which were conducted on 374 elderly people aged 65 years and older, are similar to the results of the present research (KMO = 0.76 and χ2 = 554.1, P < 0.001) [11]. Additionally, the study of Sinkovics et al., which was conducted in 2002 with the aim of creating a tool to measure technophobia, confirms our findings (χ2 = 383.075, df = 62, P < 0.001) [31]. As a result, in general, EFA provides a suitable model for the present data. Additionally, the results of the confirmatory factor analysis models were RMSEA = 0.061, SRMR = 0.042, IFI = 0.979, CFI = 0.978, GFI = 0.983, CMIN/DF = 1.769, MFI = 0.989, and AGFI = 0.942. According to the acceptable values of these indices [32], the construct validity of the instrument has an acceptable fit. The results of Anderberg et al.'s study (RMSEA = 0.067, CFI = 0.97, CMIN/DF = 6.65, SRMR = 0.036, AGFI = 0.95) [11] are similar to the results of the present research. Additionally, the findings of Sinkovics et al.'s study (CFI = 0.956, IFI = 0.957, RMSEA = 0.040) [31] emphasize the acceptability of our results and confirm the confirmatory factor analysis of the Persian version of the TechPH.
Another finding of this study was the appropriate and acceptable reliability of the tool, which was investigated using two methods of internal consistency (calculation of Cronbach's alpha coefficient) and stability (calculation of the ICC). Cronbach's alpha is used to test the reliability of an instrument that is designed in the form of a Likert scale, and its answers are multiple options [33]. The Cronbach's alpha was 0.765, which is in line with the results of Anderberg et al.'s study [11]. In general, a high Cronbach's alpha indicates the appropriateness of the internal consistency of the scale and the correlation between the items. In the study of Schnall et al., which was conducted with the aim of validating the Health Information Technology Usability Evaluation Scale (Health-ITUES), all three dimensions of the scale showed very good Cronbach's alpha values (more than 0.7) with scores of 0.85 to 0.92 [34], which can support our results. Finally, the ICC was 0.922, which, according to the acceptable value for this coefficient, is greater than 0.7 [35]. TechPH has good stability as well as high internal consistency.
Technophilia and technophobia do not have a single global definition. Osiceanu defines technophilia as the attraction and enthusiasm of humans toward technology, which is determined through activities such as the application of various advanced technologies in daily life [20]. Martínez-Córcoles et al. did not consider only passion and desire to be enough to define technophilia; rather, the need to depend on and enjoy the use of new and advanced technology products and their display should also be considered [36]. Marescotti and colleagues consider technophobia to be the fear or irrational anxiety of people who is created about the use of technologies [37]. Ajlouni and Rawadieh consider technophobia to be a psychological orientation or attitude toward technology that leads to limited use or a fear of using technology [38]. Li and Fuller defined technophilia as a person's positive emotional expression that arises from a person's response to a personal ICT context [39]. Additionally, Donat et al. described negative emotions toward technology as technophobia, which actually consists of two opposite ends of the spectrum of emotions toward technology, with technophilia at the positive end [40]. In general, it can be said that two factors are extracted from the IR.TechPH scale, which assesses technophobia and technophilia, can be considered a measure of people’s negative and positive attitudes toward technology, and the scale presented in the present study can open a new chapter of studies with different designs for needs assessment, evaluation, and interventions in the field of technology and its connection with other important fields of old age in Iran.