10 minute presentation for a PhD interview I got invited for an interview for a PhD and they asked me to prepare a short presentation of ten minutes about an aspect of a previous research and what skills it gave me to tackle this phd project. 
So I get the idea but my problem is about the "aspect". What do they mean by an aspect ? Can it be just the methods used for my research or should it be really something more specific ? All the methods I used seem important to me...

Thank you for any help or tips !
They want to see one element of your research accomplishments rather than a full explanation of everything you've ever done. If you have extensive, varied research experience (or, perhaps, if you just like to ponder the details of each project) then this can seem daunting. It's unlikely that you can present every detail of every method and its applications in ten minutes, though, so you'll need to choose one project or result and keep the details to a minimum.

The skills needed to complete a PhD aren't limited to those learned in the course of doing the research, but also planning projects, adapting methods to your own purposes, interpreting your findings, presenting them, and even general skills like working on a team or knowing when a project has become too complicated. Even the presentation itself is a demonstration of your communication skills. Choose an element of your previous experience with the best examples of these skills and how you've developed them.