Response interruption and redirection for vocal stereotypy in children with autism: a systematic replication.

Cassella et al. (2011) tried response interruption and redirection (RIRD) on vocal stereotypy in children with autism.

Each time a child hummed or repeated sounds, staff stopped the sound and asked the child to say age-appropriate words.

They tracked if the sounds dropped and if the kids used more useful speech.

RIRD quickly cut the odd vocal sounds for every child.

The sounds stayed low only when the same adults ran the program in the same room.

Good speech did not go up, and the sounds returned with new staff or new places.

Ahrens et al. (2011) ran a near-copy study the same year and saw the same drop in stereotypy, but they also saw useful speech rise. The difference: they added short motor RIRD and praised correct words.

Toper‐Korkmaz et al. (2018) later showed you can shorten RIRD to one quick demand and still win, saving staff time.

Colón et al. (2019) pushed the boundary further: RIRD still worked when staff followed only half the steps, a relief for busy classrooms.

Use RIRD when you need a fast brake on loud stereotypy, but do not expect carry-over. Plan extra steps: teach multiple adults to run it, practice in new rooms, and add strong reinforcement for useful words so speech fills the gap.