[U3Q] Maggie engages in high rates of disruptive behavior wh…

[U3Q] Maggie engages in high rates of disruptive behavior when in instructional settings. In an effort to reduce the frequency of Maggie’s disruptions, her therapist gives her frequent access to her favorite toy randomly when in the teaching environment. Maggie’s therapist is using which of the following teaching procedures to reduce disruptive  behavior within the instructional setting?