Because children who are deaf or hard of hearing are being identified at birth, fitted with advanced hearing technology, and enrolled in early intervention programs, families increasingly seek professionals who can provide services that support their choice of listening and spoken language. The increased demand for these services and shortages of…

When a program with demonstrated effectiveness is expanded, knowing how it works and why it works the way it does is an indispensable first step in preserving its quality. This report draws on P/PV's experience with different programs to show how to define a model's essential elements to increase the chances of successful replication. It contains…