This is really of interest to me! I wish I could find a way to improve my son's working memory and processing speed. He has difficulty with handwriting and speech. We have had evaluations for Visual Therapy - which was a recommendation by the test proctor because some of the issues with Coding, Sequencing, and Digit Span are some how related. Our scores are as follows:

VC 146+ 99.9
PR 147+ 99.9
WM 107 68
PS 106 66
FSIQ 138+ 99
General Ability Index 157+ >99.9
Similarities 20+ >99.9
Vocabulary 15 95
Comprehension 18+ >99.9
Block Design 14 91
Picture Concepts 15 95
Maxtrix Reasoning 24+ >99.9
Digit Span 12
Letter-Number Sequencing 10
Coding 10
Symbol Search 12

Our test stated that Digit Span is given for diagnositc purposes only. But not used in calculation of Composit or the IQ Score. The + was that discontinuation criteria was not reached.

I feel like we need to address working memory and processing speed. My concern based upon learn term testing that this will have residual affects in standardized test when he is older. I am not an expert in these areas and I read all that I can find. I would be interested in seeing if anyone with older children have had simular experiences.