ABA glossary
Performance deficit
Also called won't do
Definition
The person can perform the skill correctly but does not do so consistently under typical conditions; antecedent or consequence changes, not more training, are indicated.
Example from a session
An RBT runs DTT perfectly when observed but skips steps on other days.
Can you spot performance deficit in a scenario?
Practice BCBA F.3 with exam-style questions and instant feedback.