There have been few quantitative evaluations regarding the long-term outcomes of oral programs for deaf individuals, but those that do exist tend to study this in relation to children with cochlear implants. One study compared the English development of deaf children with a cochlear implant versus what the English development might have been without the implant. English development was greater and more successful for the implanted deaf child than that of the non-implanted child based on the implementation of a predictive model. The predictive model employs age, residual hearing, and communication mode used by the child to predict the language development. Although deaf implanted children are already at a disadvantage for English development when compared to their hearing counterparts, the implant, on average, reduced what could have been an even larger deficit had the child not been implanted (based on the predictive model). The authors recommend implanting the child as early as possible.