1.5. LIMITATIONS OF THE STUDY
Both FFVT and FFCT were conducted in an enclosed, soundproof room. This
room might not have reflected the environmental noise which is present
during the routine FFVT. However, this limitation is in accordance with
the RCT study design. No environmental noise was involved which could
have altered the intensity of sound present in the soundproof room. The
examination distance varied slightly from each examiner to another. This
study was compared against PTA, which itself is one of the subjective
assessment of hearing. Objective hearing test that can be performed is
Auditory Brainstem Response (ABR). Only a single programming language
was used to create the mobile app with which the features of mobile app
was not able to be compared upon.