Originally Posted by ElizabethN
In general, people here have not found the CogAT to be a very reliable instrument, if that's what he took.
I may be wrong, but in reading posts I formed the impression that those who did not like the CogAT were generally parents whose children did not do well with the timed aspect... the lower CogAT scores of these children were mirrored in lower Processing Speed Index (PSI) and/or lower Working Memory Index (WMI) on Welscher tests.