Skills to intermix during ABA teaching should be selected from current evidence, meaningful goals, and the person's access needs. Verify which responses are maintained, which are still being acquired, how much effort each requires, and whether materials, communication, prompts, and consequences differ. A mastered label can become difficult in a new setting, while a new skill may be comfortable. Task status belongs to the person and context, not a worksheet category.
Select skills to intermix ABA teaching uses
For every candidate, record the instruction, response form, recent independent accuracy, prompts, setting, materials, consequence, and client report. Confirm that a maintenance trial remains accurate without turning it into extra teaching.
Distinguish maintenance from familiarity
A familiar item can still require prompts. A previously mastered response may have weakened, changed form, or depended on one partner. Screen recent performance before placing it in a maintenance pool.
Review empirical boundaries
The provider survey found 91.4% of respondents who used task interspersal reported mixing maintenance among acquisition tasks, while many also reported similar-difficulty mixes. The object-label study found no consistent advantage for similar or dissimilar maintenance tasks in its first experiment.
Keep professional and access gates
The BACB outline covers skill assessments, representative measurement, contextual fit, and evaluation. The Ethics Code addresses client involvement and competence. ASHA supports AAC access during both maintenance and acquisition trials.
A practical example
Priya's team considers three maintenance responses. Recent unprompted results are 8/8, 5/8, and 3/8. Only the first clearly meets the team's predeclared maintenance rule. The other two remain teaching targets, preventing inflated practice time and misleading maintenance data.
Questions families can use
When was mastery last checked? Are prompts separated? Does the skill work with these materials and this partner? Is the response useful to the person? Will mixing protect or compete with learning time?
Sources
- Behavior Analyst Certification Board, BCBA Test Content Outline, 6th edition
- Bottini and colleagues, Task Interspersal Implementation Practices With Individuals With Autism Spectrum Disorder
- Volkert and colleagues, An Exploratory Analysis of Task-Interspersal Procedures While Teaching Object Labels
- Grow and LeBlanc, Designing Receptive Language Programs
- Behavior Analyst Certification Board, Ethics Code for Behavior Analysts
- American Speech-Language-Hearing Association, Augmentative and Alternative Communication
Finni resources
