Errorless learning errors occur because errorless describes an aim to reduce early mistakes, not a guarantee. The learner may respond before a prompt, misunderstand the cue, encounter new materials, receive a late prompt, or use a reasonable response outside the definition. The plan should define errors, supports, invalid opportunities, prompt timing, fading, and the response after a mistake while preserving client communication and later independent testing.
Why errorless learning errors occur
Classify incorrect, incomplete, no response, self-corrected, prompted, requested help, client withdrawal, and invalid events. Review whether the cue, prompt, material, response effort, health, setting, or definition contributed. An error may reveal a weak design rather than a need for stronger prompting.
Avoid treating accuracy as the only outcome
Track independent and prompted accuracy, prompt level, latency, error type, distress, duration, generalization, maintenance, and client preference. A nearly perfect prompted score can coexist with weak independence. A few errors may accompany useful learning and self-correction.
Read comparative evidence carefully
The Leaf trial compared specified errorless and error-correction procedures with 28 autistic participants on narrow tact relations. Both were effective and efficient under the study conditions. The prompting review describes varied strategies and emphasizes fading added prompts. Neither sets an acceptable error rate for another learner.
Keep communication available
The ASHA AAC guidance supports continual access to communication tools. The Ethics Code addresses assent when applicable, client involvement, risk, and continual review. A help request, pause, or dissent message should retain its meaning.
A practical example
Across ten new picture-label opportunities, Diego responds independently five times, after a model four times, and selects help once. The team reports all three categories and does not relabel the help request as an error.
Questions families can use
Which events count as errors? Are invalid materials separate? Can the client self-correct or ask for help? How are prompted and independent responses divided? Which error pattern triggers redesign?
Sources
- Association for Behavior Analysis International, Basic Principles in Behavior Analysis
- Behavior Analyst Certification Board, BCBA Test Content Outline, 6th edition
- Leaf and colleagues, Comparing Error Correction to Errorless Learning: A Randomized Clinical Trial
- A Decision-Making Tool for Evaluating and Selecting Prompting Strategies
- Behavior Analyst Certification Board, Ethics Code for Behavior Analysts
- American Speech-Language-Hearing Association, Augmentative and Alternative Communication
Finni resources
