I know this is probably a long shot but has anybody had their child tested/evaluated with both the Key Math and WIAT? And if so was there much of a difference between percentiles in performance?

My oldest dd was evaluated several years ago with the WIAT (looking at math percentiles only) and recently with Key Math and her percentiles went down 25 percentile points. Now I'm left wondering if she is not progressing or if it's just a difference in tests.

Thanks!