The choice of hearing aid prescriptive rule barely affects speech intelligibility.

Evidence

Audiologists generally determine the amount of amplification provided by a hearing aid from the audiogram and a prescriptive rule. The amount of gain provided is generally somewhere between one-third and half of the hearing loss. A variety of prescriptive rules are available, but the specific prescriptive rule has been demonstrated to have little effect on speech intelligibility (Humes, 1991). — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1720

Categorization

• QUESTION: Which prescriptive rules were compared, and does rule choice matter more for other outcomes like comfort or loudness perception?