An ABA teaching material failure should be recorded as an environmental or implementation event when a required item is missing, broken, inaccessible, outdated, unsafe, or different from the plan. If preparing the material is a scored client step, use that definition instead. The record should name who owned setup, whether teaching continued with an approved substitute, which data stayed valid, and what repair prevents recurrence.
Classify each ABA teaching material failure
Use specific codes such as missing, damaged, wrong version, battery depleted, inaccessible position, unsafe, partner forgot, or approved substitute used. State whether the event prevented the opportunity, changed the task, or affected only one step. A broad no response code hides the system problem.
Protect the original denominator
Predefine whether observed steps before a failure remain valid and when the whole trial becomes invalid. If material preparation belongs to staff, the client should not lose an opportunity or receive an error. If the client is learning to gather supplies and the supplies existed accessibly, that step may be scored under the plan.
Keep teaching evidence separate
The BACB outline covers observable measurement, procedural integrity, teaching procedures, and evaluation. The Ethics Code addresses documentation, risk, and ongoing review. The CASP summary supports individualized implementation. The Leaf study used controlled materials in a narrow teaching comparison, so it cannot define real-world invalid-trial rules.
Preserve communication and safety
The ASHA AAC guidance supports continual communication access. Treat missing AAC, an unavailable visual, or a failed access tool as a serious system issue with a tested backup. Never substitute an unsafe or inaccessible item merely to finish a trial.
A practical example
During ten zipper-practice opportunities, the adapted zipper pull is missing twice. Staff use the approved backup once and stop once because the replacement is sharp. Report eight planned-material opportunities, one approved-substitute opportunity, one safety stop, and the partner setup failures separately.
Questions families can use
Which material failed? Who owned setup? Was an approved substitute available? Did the task or denominator change? Was safety affected? How is recurrence assigned and closed? Which later sample verifies that the repair works?
Sources
- Behavior Analyst Certification Board, BCBA Test Content Outline, 6th edition
- Leaf and colleagues, Comparing Error-Correction and Errorless-Learning Procedures
- Cariveau and colleagues, The Effects of Reinforcement Following Error Correction
- Behavior Analyst Certification Board, Ethics Code for Behavior Analysts
- Council of Autism Service Providers, ABA Practice Guidelines Version 3.0 public summary
- American Speech-Language-Hearing Association, Augmentative and Alternative Communication
Finni resources
