Yosef (8;1 Years) Has Childhood Apraxia of Speech

Multiple Choice

Yosef (8;1 years) has childhood apraxia of speech. He has been trying really hard during intervention sessions targeting his production of polysyllables. To maintain Yosef's motivation to practice, you talk with Yosef about his interests, and together you come up with a salient reinforcement plan. The plan involves Yosef having a turn of his favorite electronic game every 20 responses. This reflects:

A) an activity reinforcer with a fixed ratio.
B) a tangible reinforcer with a fixed interval.
C) social reinforcer with a fixed ratio.
D) an informative reinforcer with a continuous schedule.