If a person has a correct score of 75% in a vision-only condition and a correct score of 85% in an audition-plus- vision condition, what is the speechreading enhancement score using the normalized ratio method?

Question

Quizplus · Accepted Answer

The speechreading enhancement score using the normalized ratio method is calculated as (Audition-plus-Vision score - Vision-only score) / (100% - Vision-only score) = (85% - 75%) / (100% - 75%) = 10% / 25% = 40%.

If a Person Has a Correct Score of 75% in a Vision-Only