Table 1.

Participant 39’s Individualized Prompt Hierarchy for Errorless Language Learning

Prompt Level	Example	Reinforcement
Converge mands, tacts, echoics, and sequelics (100%)	While the student is engaged with a ball, restrict access to the reinforcer (M) while keeping it in the student’s line of sight (T). Provide the target response (E) followed by an intraverbal frame (S): “You roll the ball. You roll the _____.”	Reinforce correct responding with access to the ball and verbal praise.
Converge mands, tacts, and echoics (96.2%)	While the student is engaged with a ball, restrict access to the reinforcer (M) while keeping it in the student’s line of sight (T). Provide the target response (E): “Say, ‘Ball.’”	Reinforce correct responding with access to the ball and verbal praise.
Converge mands, echoics, and sequelics (63.5%)	While the student is engaged with a ball, hide the reinforcer (M), and provide the target response (E) followed by intraverbal frame (S): “You roll the ball. You roll the _____.”	Reinforce correct responding with access to the ball and verbal praise.
Converge mands and echoics (59.6%)	While the student is engaged with a ball, hide the ball (M) and provide the target response (E): “Say ‘ball.’”	Reinforce correct responding with access to the ball and verbal praise.
Converge mands, tacts, and sequelics (55.8)	While the student is engaged with a ball, restrict access to the reinforcer (M) while keeping it in the student’s line of sight (T). Provide an intraverbal frame (S): “You roll the _____.”	Reinforce correct responding with access to the ball and verbal praise.
Converge mands and tacts (51.9%)	While the student is engaged with a ball, restrict access to the reinforcer (M) while keeping it in the student’s line of sight (T), and ask the student to request access: “What do you want?”	Reinforce correct responding with access to the ball and verbal praise.
Converge mands and sequelics (19.2%)	While the student is engaged with a ball, hide to the reinforcer (M) and provide an intraverbal frame (S): “You roll the _____.”	Reinforce correct responding with access to the ball and verbal praise.
Isolate mands (15.4%)	While the student is engaged with a ball, hide it and ask the student to request it (M): “What do you want?”	Reinforce correct responding with access to the ball.

Note. This sequence was generated from Participant 39’s pretest SCoRE assessment. As part of ongoing progress monitoring, the individual steps of the sequence were subject to change in accordance with the data from fluency probes. The percentages listed in parentheses show the converged proportion of control over the verbal repertoire.