The Mobile Device Proficiency Questionnaire (MDPQ) contains 46 questions with eight subscales, which are as follows: mobile device basics, communication, data and file storage, internet, calendar, entertainment, privacy, and troubleshooting and software management. Each question item is rated on a five-point scale based on the individual's subjective proficiency level. The scores ranged from 8 to 40 and were scored in a similar manner to in the original version. For each subscale of the MDPQ, responses for all questions were averaged. These averaged scores were then summed across subscales to come up with a total score of the MDPQ.

Information and Communication Technologies (ICT) enable users to perform various tasks with minimal effort. Today, many elderly individuals also own their own mobile devices. Mobile devices are small, lightweight and portable information terminals, and are indispensable for ICT use in our daily lives with models such as smartphones and tablet computers. In addition, in the USA and Japan, 61% and 74.2% of individuals aged 65 and over use smartphones, respectively. Mobile devices are used for various functions in daily life such as making phone calls, messaging, checking programs, shopping, paying bills and accessing entertainment content, facilitating many tasks. However, some elderly individuals who own mobile devices do not sufficiently benefit from the advantages offered by ICT. There are significant differences in internet literacy among elderly individuals, and social and socioeconomic factors can affect the digital gap among elderly individuals. Due to these social factors, efforts to eliminate digital inequality need to be increased in the future.

This study aims to adapt the Mobile Device Proficiency Questionnaires (MDPQ) to Turkish. MDPQ can serve as a basic and quantitative indicator of ICT proficiency among the elderly population. In this context, the Turkish version of MDPQ, MDPQ-T, will be created and its reliability and validity will be verified. We expect this new assessment tool to have the same high reliability and validity as the original version in the Turkish population. We also predict that the duration or frequency of use of mobile devices will be positively correlated with mobile device proficiency measured by MDPQ-T. In addition, we expect not only the accessibility of mobile devices but also the subjective importance, performance and satisfaction level of mobile device use in daily life to be positively correlated with MDPQ-T.

Inclusion Criteria:

• Being a native Turkish speaker,
• Having no reading or writing problems,
• Having a mobile device such as a phone or tablet,
• Agreeing to participate in the study

Exclusion Criteria:

• Individuals with neurological diseases such as cognitive impairment, Alzheimer's, dementia, etc. will be excluded from the study.

Geriatric individuals between the ages of 65-80