ABA Fundamentals

An evaluation of convergent intraverbal instruction on tacts of features, function, or class

Brown et al. (2024) · Behavioral Interventions 2024
★ The Verdict

Mastering convergent intraverbal answers does not automatically produce feature, function, or class tacts—plan separate tact training.

✓ Read this if BCBAs teaching verbal behavior to early learners in clinic or school.
✗ Skip if Practitioners focused only on conversation or social skills.

01Research in Context

01

What this study did

Brown et al. (2024) asked if teaching kids to answer convergent intraverbal questions makes them later name features, functions, or classes without more teaching.

Four children worked in alternating sessions: first intraverbal "What has wheels and takes you places?" then a tact trial "What part is this?" for the same item.

The team tracked whether correct intraverbal answers predicted correct tacts in the next session.

02

What they found

Correct convergent intraverbal answers did not guarantee later correct tacts.

Some kids scored a large share on intraverbals but still failed the matching tact trials.

The link was unreliable, so the authors call the outcome inconclusive.

03

How this fits with other research

Ilan et al. (2021) showed that saying targets aloud helped adults with ID remember them later. Both studies test if one kind of verbal practice boosts another, but Michal found a clear memory gain while Brown found no tact gain.

LAller et al. (2023) are testing if reading lessons create emergent reading for AAC users. Like Brown, they ask whether prior instruction produces new untaught verbal skills, but their trial is still running.

Livingston et al. (2021) used single-case logic to find the right attention reinforcer. Brown used the same logic to check for skill emergence, showing the method works for different verbal-behavior questions.

04

Why it matters

Do not assume that a child who can answer "What flies and has feathers?" will automatically point to a bird’s parts or tell you its function. Plan separate, explicit tact training after intraverbal work. Check each skill, do not infer it.

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After a child answers an intraverbal question correctly, immediately probe the matching tact; if they fail, run direct tact trials right then.

02At a glance

Intervention
verbal behavior intervention
Design
single case other
Sample size
4
Population
not specified
Finding
inconclusive

03Original abstract

AbstractEducators and parents are encouraged to arrange language‐rich environments, which provide children with exposure to language that is diverse in form and function and with repeated opportunities to emit verbal responses under a variety of conditions. Intraverbal relations constitute a large portion of these verbal interactions and may include compound antecedent verbal stimuli. Prior research has shown that responding may come under the control of limited features of compound antecedent stimuli, which may be evident when responding does not occur in the presence of individual elements or emergent performances (e.g., symmetrical relations) are absent. The current study evaluated the effects of alternating convergent intraverbal (CIV) and tact by feature, function, or class sessions on emergent tact performances in a game‐like arrangement. Participants included four children exhibiting expressive language deficits. The results revealed that correct responding on CIV trials did not consistently predict tact performances for the same targets. These findings highlight the need for additional research on the effective arrangement of compound stimuli in early educational interventions.

Behavioral Interventions, 2024 · doi:10.1002/bin.2054