You already have lots of good info above. Ditto an slp eval by an actual slp, not a neuropsych, with emphasis on pragmatics/metalinguistics.
The WISC-IV had three VCI subtests: Similarities, Vocabulary, Comprehension. Comprehension has been dropped from the WISC-V. Yes, that is the one that includes more social language. The other two measures involve very little receptive language (literally, one or two words per item), and don't necessarily require much expressive language, either (can be answered in one or two words, as well, though most children don't).
EF testing may include direct instruments like the D-KEFS, RCFT (Rey), NEPSY-II, an array of small tests (e.g., Wisconsin Card Sorting, Trailmaking), some computer-administered tests, mostly focused on attention, switching, and inhibition (CCPT, CATA, TOVA). Or it may include rating scales, like the BRIEF or CEFI.
