Treatment of a selectively mute third-grade child

A third-grade girl who did not speak in school was treated by school personnel using principles of behavior modification. A step-by-step procedure was designed which first encouraged speech in a one-to-one setting with an adult. Gradually elements of the regular school situation were introduced into the setting. The final phrase of treatment involved moving the elements back into the regular classroom. At the end of the school year, $\text{2}\text{1}\text{2}$ months following termination of treatment, the subject was still speaking freely.