Evaluating a candidate during an interview doesn’t all boil down to if he/she is capable. You need to consider other things as well.
Here are the things you need to consider when evaluating someone for an interview:
Educational background: Especially in our field, education is essential to be considered. The more you know, the more valuable you become.
Work experiences: Experience is as important as academic knowledge. The more experience candidates have, the more valuable they are.
Special skills/technical skills: In line with work experiences, having special and technical skills is essential to have if that skill can contribute a lot to the research and developmental projects.