ABA Fundamentals

Comparing structured mix and random rotation procedures to teach receptive labeling to children with autism

DiSanti et al. (2020) · Behavioral Interventions 2020
★ The Verdict

Pick structured mix for kids with <50 receptive labels and random rotation for kids with >200 labels when teaching new receptive words.

✓ Read this if BCBAs running DTT receptive-label programs with children with autism.
✗ Skip if Clinicians teaching only tacts, intraverbals, or play skills right now.

01Research in Context

01

What this study did

The team worked with children with autism who were learning receptive labels.

They compared two ways to show the pictures: structured mix (a set order) and random rotation (shuffled each time).

An alternating-treatments design let each child try both ways every day.

02

What they found

Kids who knew fewer than 50 words learned faster with the structured mix.

Kids who already had more than 200 words learned faster with random rotation.

No single method won for every child; language level decided the winner.

03

How this fits with other research

Wunderlich et al. (2017) also used alternating DTT for receptive labels and saw a small edge for concurrent over serial presentation. Their result adds to the idea that tiny setup changes matter.

Vladescu et al. (2021) and Kodak et al. (2020) asked how many items to put in a set. One says 3–6 is best, the other says 6–12 is best. The mixed answers echo DiSanti’s main point: the child’s skill level changes what works.

Cordeiro et al. (2022) switched from set mastery to target mastery and cut teaching time in half. Together these papers push the same lesson: match the procedure to the learner, not the lesson plan.

04

Why it matters

You can save sessions by picking the order that fits the child’s current vocabulary. Count the receptive labels in your baseline. If it’s below 50, use a fixed set order. If it’s above 200, shuffle the deck. Check again after mastery and be ready to flip.

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Tally each learner’s known receptive labels, then run the next set in structured order if under 50 or random order if over 200.

02At a glance

Intervention
discrete trial training
Design
alternating treatments
Sample size
9
Population
autism spectrum disorder
Finding
mixed

03Original abstract

ABSTRACTWe compared two procedures using an alternating treatments design to teach receptive labeling to children with autism. The structured mix procedure followed seven steps entailing mass trials, intermixing, and random rotation. In the random rotation procedure, we trained all stimuli from the start. Study 1 included four children with a repertoire of four to 50 receptive labels and who primarily communicated with an alternative communication device. Results showed that the two conditions were comparable for one participant, structured mix was effective and random rotation was not effective for one participant, and that both conditions were ineffective for two participants. Study 2 included five children with over 200 receptive labels in their repertoire and with vocal speech as the primary form of communication. Four participants acquired the labels in both procedures, but random rotation was more effective. Results indicate that structured mix may be more effective for participants with a limited language repertoire and random rotation is more effective for participants with a larger language repertoire.

Behavioral Interventions, 2020 · doi:10.1002/bin.1694