I finally got the full results of DS6's WISC-V -- definitely last minute as his IEP meeting is tomorrow morning.

WISC-V
Verbal Comprehension 155
Visual Spatial 147
Fluid Reasoning 151
Working Memory 120
Processing Speed 103
Full Scale IQ 144

Subtests
Block Design 19
Similarities 19
Matrix Reasoning 19
Digit Span 13
Coding 8
Vocabulary 19
Figure Weights 18
Visual Puzzles 18
Picture Span 14
Symbol Search 13

Obviously the coding section pulled his full scale score down -- the psych said this involved writing and the problem was his poor fine motor skills. From the reading I've done since, he has clearly hit the ceiling effect as well, with subtest scores of 18/19 in 6 of the 9 sections.

He also had other tests that I hadn't heard of -- results below.

Reynolds Intellectual Assessment Scale (RIAS)
Verbal 154
Nonverbal 145
Overall IQ 158

Subtests
Guess What (verbal) 75
Verbal Reasoning (verbal) 85
Odd-Item Out (nonverbal) 72
What’s Missing (nonverbal) 75

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Wechsler Individual Achievement Test - III

Math Problem Solving 150 Grade Equivalent 4.6
Word Reading 150 Grade Equivalent 8.4
Psuedoword Decoding 134 Grade Equivalent 7.2
Numerical Operations 126 Grade Equivalent 3.0
Spelling 141 Grade Equivalent 4.9
Math Fluency – Addition 108 Grade Equivalent 2.0
Math Fluency – Subtraction 118 Grade Equivalent 2.3

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Woodcock Johnson Reading Mastery Test-III

Oral Reading Fluency 138 Grade Equivalent 5.1
Passage Comprehension 145 Grade Equivalent 7.5

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I was kind of surprised at the two math scores with 2nd grade equivalents as he's so far ahead in math concepts, but it did say fluency so maybe it involves speed.

In any case, his IEP meeting is tomorrow, so hopefully we get somewhere with the school this year.