With ds8 at 5 years 9 months when I got the results. I noticed he was a bit different at about 4.5. Sure childcare people had been telling me how bright he was but he was no different than the rest of the kids in my family. He doesn't do anything amazing to prove he is PG really. With ds6 I knew earlier. He is more verbal and temperemental and had earlier milestones physically. He is EG.