I would chime in with Loy58. We knew our DS9 (just turned 10) was doing very well with grade level work....he was in the 4th grade last year, and eligible to take the Explore....'wake up call' could not be a better description....he did exceptionally well. The Explore would be my first option...you always have the WIAT or W J Ach as additional options. You will have more of a wait on getting your Explore scores back. Good Luck