Students who want to help diagnose and treat people with communication disorders may benefit from a speech and language therapy program. The course may provide the clinical and educational knowledge a therapist needs to evaluate, identify and treat communication disorders.

A Doctorate of Philosophy, or PhD, may require eight years or more to complete, as well as a dissertation. In most fields, the possession of a PhD qualifies the holder to become a professor of a chosen subject. There are many different programs available.