I need to make a decision soon about whether to book in for SB5 or WPPSI-IV testing when my daughter is 3.5yo, as the waiting lists in my area are fairly long.

I know waiting until after 4yo is recommended but the testing is required earlier to see whether early entry to school is an option.

I understand the SB5 has a higher ceiling but this wouldn't be required for a 3.5yo, would it? I've also heard that the SB5 is more appealing for younger children - any thoughts on that? Also the other difference I've read is that the WPPSI is a little more verbal than the SB5 - so would a child with a large vocab perform better on this?

Also, how does the SB5 vs WPPSI compare score wise? The SB5 scores a little lower doesn't it? But considering the WPPSI was just re-normed, does that peg them fairly equal now?

thanks in advance for any advice