In this case, you're seeking to match your candidate's experience with your organization's current needs. For example, if your clinic treats many patients suffering from anxiety and depression, you'll want someone with familiarity in those areas. However, if you see many elderly individuals who are struggling with mental health issues in combination with physical challenges, you may want to hire a psychologist with more experience with this age group. What to look for in an answer:

Experience in areas where you have need

A broad understanding of common mental health issues

Specialty with particular age groups