A friend on another board posted about some things she learned in a seminar with a counselor of gifted children on executive function. My friend has given permission for me to excerpt her post here for discussion.

I thought this was interesting in light of the avg IQ of 100.
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110-120 is considered optimal IQ for a successful life.

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Gaps between scores usually indicate learning disabilities but with gifted kids, these gaps which can be exponentially larger, are often ignored, but these are relevant! They cause frustration and vulnerability

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Executive Function - the control room of the brain�nothing to do with intelligence
Most LD's results from weakness in executive function. Executive Function includes prioritizing, goal setting, initiating, sequencing, focus, planning, sustaining effort, emotional control, transitioning, organization, pacing, impulsivity, working memory, self-monitoring and completion of tasks .

Grade acceleration without the scaffolding of support for executive function fails.

I then asked the same question I've asked here several times...is a 30pt difference on the lower end, same as a 30pt difference on the high end. She responded:

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The speaker said that gaps among gifted kids are just as important. In fact the gaps are larger than they seem since IQ is an exponential curve so 10 points at 140 is a much larger gap than 10 points at 100 but everyone (educators) ignore these gaps since the kids are so bright.

My son has a 25 pt and 39 pt difference between VCI and WOrking Memory and Processing speed, respectively.

I've always wondered (and discussed w/ others here) exactly what this means for DS.