Thanks geofizz, I will check out the link.

Polarbear, thanks for your input. What tests will find an expressive language disorder? Or what are the symptoms? That's what I've been wondering about DS, although he has been a lot better lately. Strangely, he does Ok with writing now. He had to write about what adventures he had with Splat the Cat in the last week and since there were no adventures (other than Splat being thrown around), I told him to just make something up. In about 3 minutes he had a good 6 sentences about how Splat the Cat went around the yard with him finding Easter eggs and he taught Splat how to play Minecraft. I'm not sure if DD would have been able to do that or not. Although she lies very well verbally and makes up elaborate stories (telling them as if they are true). Now if only she could put it down on paper. I will definitely experiment and see what I can get her to write. Her speech has always seemed advanced to me and teachers have all said that she is very articulate and advanced, so I can't quite put my finger on what is going on with her.