What does it mean that his verbal working memory was the highest score on the test and the non-verbal working memory was the lowest. I don't have a good understanding of the difference between verbal and nonverbal working memory and what this spread in scores means.
And Zen, DS has exactly the same vision/coordiantion issues - can't catch, balance is poor, can't find anything to save his life, and skips lines or words when reading.
Just realized I never answered this question.
Nonverbal working memory involves motor responses, where verbal working memory does not (well, unless you count speaking as a predominantly motor response). Verbal working memory also uses relatively meaningful material (sentences), while nonverbal working memory uses mostly generic-looking blocks, which may not have as much intrinsic meaning. Vision/coordination would definitely have more potential for affecting the nonverbal working memory task than the verbal working memory task.
His strong verbal working memory would also accord with academic strengths in the basic skills that are the focus of the early elementary years, as well as with easily acquiring and retaining information.
