I tried to do it myself - no idea.

WISC IV 8yr 7mos

VCI 144
PRI 133
WMI 129
PSI 109

FSIQ 138

Is that all you need?

thanks in advance

Tory

Tory, I think you need the scaled scores from the VCI and PRI subtests.

You'll need the WISC Technical Report #4: http://www.ksde.org/Portals/0/Special%20Education%20Services/gifted/WISCIVTechReport4.pdf

The discrepency btwn his PRI and WMI scores would warrant utilizing an GAI instead of a FSIQ, but you will need the scaled scores for the tests within the VCI and PRI indices to calculate the GAI. Do you have those?

Without those, some of us with kids whose VCI and PRI totals weren't far off of your dc's might be able to ballpark a figure for you. My younger dd's VCI was a hair lower than your dc's and her PRI was a bit higher, but overall they were quite close. Based on her GAI from that testing, I'd venture to guess that you'd be looking at a GAI around 144 with those scores.

Oops - sorry (and thank-you)

His scaled scores are:

VCI
SI 16
VO 18
CO 18

PRI
BD 16
PC 14
MR 16

Cheers

Thanks for the report link Cricket - I get 147 - does that sound right?

Cheers

Yep, that looks right to me. Sorry to have underestimated by a few #s. My dd's was right around there too with very similar VCI and PRI scores. She was lower in both WMI and PSI, though, not just PSI so the GAI was something like 17 points higher than her FSIQ.

Thanks Cricket!!

Cheers