The utility of assessing musical preference before implementation of noncontingent music to reduce vocal stereotypy.

Four kids with autism listened to pairs of songs for five minutes.

They picked the song they liked best each time.

The team then played that high-preference song, a low-preference song, or no music during work sessions.

They counted how often each child sang or hummed when no one asked them to.

Three out of four kids hummed less when their favorite songs played in the background.

Low-preference songs and silence did not help.

The same quick song-choice test picked the right song every time.

Gibbs et al. (2018) later added response interruption to the music and saw even bigger drops in stereotypy.

Wanchisen et al. (1989) showed that asking kids to pick reinforcers before each session can wipe out problem behavior; this study proves the same trick works with music.

Adkins et al. (1997) found that high-preference toys can raise stereotypy, which looks like the opposite result.

The difference is the type of stimulus: music stays in the background, while toys invite play that can turn into stereotypy.

Before you set up noncontingent music, spend five minutes letting the child choose songs.

Use the top pick as background sound during tasks.

This tiny step can cut vocal stereotypy for most kids without extra staff or effort.