Unscaled vs Scaled G25

[RyoHazuki]

What's the key difference between these two methods? Also the unscaled online calc now only lets me have 4 references with no individual references option, it had way more options earlier. What gives?

[Abdelnour]

Bump. I would like to know the same.

[JamesBond007]

What's the key difference between these two methods? Also the unscaled online calc now only lets me have 4 references with no individual references option, it had way more options earlier. What gives?

I dunno, I just imagine that scaled method is better because you are dealing with two seperate sources of data. For instance, you can't just take all parts of a Weschler adult IQ test besides the non-verbal and then substitute the non-verbal with the Raven Progressive Matrices then try to get your full scale IQ uses both sources because they use two different scales.