Puffin, Australia is heavily biased to the WISC, there are only a handful of testers who use the SB5 (not one in my state for example), they are pretty much ALL gifted experts, there is at least one developmental paed that uses it, but they are paeds who have many IQ tests up their sleeve so that they can issue one the child hasn't already taken previously. There are also many psychs who are very good with gifted who prefer Wechsler tests (I can think of two in my city, there would be more too). So Australia is very Wechsler centric. Also there is a huge bias against the SB5 in some quarters. I know more than one person who's received they eyeroll and "Well EVERYONE is gifted on the SB" response from other professionals. Which I find pretty funny given that on this board it seems to be considered slightly "harder"...

Also, of the few NZ posters I am aware of on this board you are the first I know who's used the WJ, the others have had Wechsler results.

The WJ has no norms for Australia so it doesn't really get used here at all.