It has also been suggested that cli

It has also been suggested that clinicians should focus on other measures instead of the FSIQ or the four IQs. Another two
global indexes can be derived from the WISC-IV (Wechsler, 2003), i.e. a General Ability Index (GAI) obtained by combining
the VCI with the PRI, and a Cognitive Proficiency Index (CPI) resulting from combining the WMI with the PSI (Prifitera,
Saklofske, & Weiss, 2008; Saklofske, Coalson, Raiford, & Weiss, 2010). The GAI has the greatest load on the g-factor, so it could be particularly appropriate for diagnosing intellectual disabilities (ID). On the other hand, a study comparing the GAI and FSIQ in a large sample of children found no evidence to justify dismissing the FSIQ in favor of the GAI (Koriakin et al., 2013). It is worth noting, however, that these findings were based more on children with ID than on cases with a specific learning
disability (SLD), and focused mainly on their adaptive functioning.