Behind these tests, is that we have 3 different ways of processing information/ thinking. Which are auditory, visual and spacial.
So that the VCI (Verbal Comprehension Index), is basically a test of auditory thinking.
Then the PRI (Perceptual Reasoning Index), tests the combined use of visual and spacial thinking.
So that the scores show strong visual-spacial thinking, but a difficulty with auditory processing.
Though auditory processing a complex process, so that the next step is to look at the sub-tests under VCI. Which will help to get an idea of what particular difficulty/ies their are with auditory processing?