There is no single test, which can assess the hearing status of child properly, so battery of tests are implied to have proper assessment as the decision of the intervention will depend on this evaluation. The tests that are commonly used are:

• Behavioral Observational Audiometry/ Pure Tone Audiometry

It gives the idea about the hearing thresholds of the patient. If the child is less than 3-4 years then behavioural audiometry is the test which is to be done but in older children and adults the pure tone audiometry gives the threshold levels of the hearing.

• Aided Audiometry

This test provides the information about whether the patient is getting adequate benefit after putting hearing aid or not. This test is also useful in deciding about which ear is to be implanted if the patient is to be implanted in one ear.

• Auditory Steady State Response (ASSR)
• Brain Stem Evoked Response Audiometry (BERA)
• Oto Acoustic Emissions (OAE)
• Tympanometry

This will help in determining the hearing thresholds and also will evaluate whether the child will get adequate benefit from hearing aid. This means the hearing benefit, which can lead to development of speech and language.