Measuring the user experience of Augmented reality application for elderly
I'm conducting a study on elderly experience of AR application. The plan was to use SUS (System Usability Scale) to measure the ease of use. Then, after planning the whole thing, I realized I made a stupid yet large mistake. My audience are Arabic Elderly and there is no translation of the SUS to Arabic.
My questions are:
What method might I use instead of SUS that will give more quantifiable results? I found other method but the mainly focus on website not mobile application or not suitable for elderly.
If I would use SUS, what should I do to validate the Arabic version?
I'm open to any suggestion.