A Preliminary Analysis of Incidental Bidirectional Naming and Derived Listener and Speaker Relations for Literacy Responses
A fast Inc-BiN check tells you which preschoolers will pick up letter-sound skills for free and which ones need direct teaching.
01Research in Context
What this study did
Abdool-Ghany et al. (2024) asked a simple question: do some kids learn literacy skills on their own? They tested preschoolers with developmental delays. First they checked each child for Inc-BiN, Inc-UniN, or NiN. These labels tell you if a child can both name and understand new words after just hearing them once.
Next the team showed made-up letter-sound pairs. They watched who could read, write, and talk about the pairs without any teaching. Kids with Inc-BiN got zero extra lessons. The other groups got direct training until they passed.
What they found
Children who already had Inc-BiN nailed the literacy tasks right away. They could listen, speak, read, and spell the new code without one teaching trial. Kids with Inc-UniN or NiN needed step-by-step training and still showed weak spill-over to untaught tasks.
The take-home: Inc-BiN acts like a built-in tutor for early literacy.
How this fits with other research
Roane et al. (2001) ran an earlier stimulus-equivalence program for preschoolers with DD. They taught every child every step. Abdool-Ghany updates that work by showing you can skip the lessons if the child shows Inc-BiN, saving hours of therapy.
van Tilborg et al. (2014) warned that phonological awareness is not a key predictor for kids with ID. That sounds like a clash, but it is not. Arjan looked at traditional predictors such as rhyming. Abdool-Ghany looks at Inc-BiN, a different doorway into literacy. Both papers agree that typical reading readiness rules do not fit this population.
Brown et al. (2024) also tested emergent verbal relations in preschoolers. They found that mastering one skill did not guarantee another. Abdool-Ghany gives us a clear test—Inc-BiN—that actually forecasts when new relations will pop out on their own.
Why it matters
Stop guessing where to start. Run a quick Inc-BiN probe before you plan literacy goals. If the child shows bidirectional naming, move on to tougher material and drop the basic drills. If not, teach the basics directly and check again later. This one probe can save weeks of redundant table time and keep your session lean and fun.
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Open your next preschool file, run five Inc-BiN trials with novel objects, and let the results decide whether you skip or keep the letter-sound lessons.
02At a glance
03Original abstract
AbstractIn the realm of behavioral research, significant contributions have greatly advanced reading studies, influencing educational practices. We explored the relationship between the degrees of incidental bidirectional naming (Inc-BiN) capabilities and children's derived relations for literacy responses. Inc-BiN is a repertoire whereby a child acquires listener and speaker responses from observation alone. Incidental unidirectional naming (Inc-UniN) occurs when observation of object-names produces listener, but not speaker behavior. Students who did not demonstrate listener and speaker components were classified as having No Incidental Naming (NiN). Across two studies, we evaluated how component skills involved in Inc-BiN are connected to emergent literacy responses in preschoolers with a disability. In Study 1, participants completed two conditions: (1) directly reinforcing speaker responses and testing for the emergence of listener responses, and (2) directly reinforcing listener responses and testing for the emergence of speaker responses. Results suggested that participants with Inc-BiN readily derived both speaker and listener responses, participants with Inc-UniN readily derived listener, but not speaker responses, and participants with NiN had difficulty acquiring directly reinforced responses and deriving responses. In Study 2, we established Inc-BiN with participants and readministered Study 1 tests. Our results suggest overlap between incidental bidirectional naming and derived responses and point to how one can incorporate derived relations instruction and differentiate instruction for children with varying repertoires.
Behavior and Social Issues, 2024 · doi:10.1007/s42822-024-00163-8