What is skill acquisition in ABA?

Skill acquisition covers everything a program is trying to build, as distinct from the behavior it is trying to reduce. Targets come out of assessment and are organized into domains - communication, social interaction, play and leisure, self-care and daily living, academic and pre-academic skills - then sequenced forward from what the learner can already do.

Teaching formats vary with the target and the learner. Discrete trial training suits skills that benefit from many concentrated repetitions; natural environment teaching embeds instruction in the play and routines where the skill is actually used; task analysis and chaining handle multi-step routines like handwashing or getting dressed. Most programs use several, chosen goal by goal rather than adopted wholesale by a practice.

Underneath the formats the mechanics are consistent: find what the learner will work for, prompt the correct response, reinforce it, then fade the prompt so the skill comes under natural stimulus control. Shaping builds toward responses not yet in the repertoire by reinforcing successive approximations, and error-correction procedures keep practice from cementing mistakes.

A target is not finished the first time it is correct. Goals carry mastery criteria - typically accuracy sustained across sessions, instructors, and materials - and mastered targets move into maintenance probes and generalization checks. A skill that appears only with one therapist at one table has not really been acquired, which is why generalization is programmed from the start rather than bolted on once teaching is done.

The whole track runs on data: trial-by-trial or probe data for each target, reviewed by the supervising clinician against the mastery criteria, with targets advanced, revised, or retired on that evidence. Consistent recording during sessions is what makes those decisions possible, and it doubles as the progress evidence funders expect to see.