Implementing RtI

We have spent this past year implementing 3 tiers of intervention. In addition, we adopted a universal screening tool called AimsWeb. I am most curious to see what data are being collected in grade 3 reading in other districts, and if that data are correlated to students' Connecticut Mastery Scores. Without a strong screening tool, that is closely aligned to Ct. Standards, we may not be headed in the right direction. Any ideas on how to set up this reasearh? Happy RtI!