The Rhode Island House is going to pay for an independent study of a proposed lottery contract extension with IGT. The Providence Journal reports House Speaker Nick Mattiello, a Democrat, has approved a request for the study by House Republican leader Blake Filippi, and that invitations to bid are going out this week, according to a spokesperson. Senate President Dom Ruggerio says the Senate is not taking part in the study, citing what he called a thorough review of the proposal conducted by the Senate Finance Committee.