Evaluating the Influence of Intraverbal Topography in Conditional Discrimination Procedures.

Two kids with autism learned letter-sound pairs through match-to-sample lessons.

The teacher tried two ways to ask for the sound: WH-questions (“What sound?”) and statements (“Say the sound”).

They tracked which form helped new, untaught intraverbals pop up faster.

Both children learned the matching tasks no matter how the teacher talked.

Yet the statement form made untrained letter-sound intraverbals show up sooner for one child; the other child showed little difference.

So the shape of the intraverbal cue can speed or slow emergent learning.

Halbur et al. (2021) also tweaked stimulus form: they used high-disparity sounds instead of words and saw faster learning. Together the papers say small changes in how stimuli feel can push acquisition.

Chou et al. (2010) proved that kids with autism can get emergent reading after complex match-to-sample. Mulder et al. (2020) adds that the way you ask afterward matters for that emergence.

Ramirez et al. (2009) showed siblings pick up symmetry just by watching. The new study narrows the lens: even the teacher’s sentence type can act like a hidden prompt.

You can speed up untrained letter-sound intraverbals without extra trials. Try swapping WH-questions for short statements during equivalence probes and watch if new sounds appear sooner. One quick wording change may save you and your learner time.