A Hearing Evaluation, also known as an audiological evaluation, assesses the person's hearing on a higher level than the hearing screening.  In hearing evaluation, a person's hearing is tested through a battery of assessments, including of middle ear function, response to tones, and response to speech.  All these are utilized to establish a person's hearing threshold, or lowest level of hearing sensitivity.  Through assessment of the different part of the auditory system, the hearing loss can be determined as to its site of lesion (place where the hearing loss is occurring) so that proper recommendations can be made. These recommendations can be medical or for amplification.  It is the role of the audiologist to determine the level of hearing loss and through the battery of tests determine the point of lesion so proper steps can be made towards treatment.

External Links:

Hearing Testing in Infants and Children- a parents' guide presented by Boys Town National Research Hospital

Understanding Your Audiogram- by the American Academy of Audiology

Understanding Hearing Loss- an explanation of hearing loss by Boys Town National Research Hospital

What You Should Know About Hearing Loss- by the American Academy of Audiology