In 1968, Baer, Wolf, and Risley described seven dimensions that set applied behavior analysis apart from other ways of helping people change. They remain the standard for judging whether a program, a study, or your own plan really counts as ABA.
Why it matters
The dimensions work like a quality checklist. When you design an intervention, they push you to pick a target that matters, measure it directly, show that your procedure caused the change, write it so others can carry it out, tie it to basic principles, make a real difference, and make that difference last.
They also help you read research and supervise staff. A published study with a vague procedure section, or a program where data improve only in the therapy room, has a gap you should be able to name. Practice items for this task usually describe a program or study and ask which dimension is missing or best shown.
Key ideas
- There are seven dimensions, and a strong program meets all of them. Many learners remember them with the mnemonic GET A CAB: Generality, Effective, Technological, Applied, Conceptually systematic, Analytic, Behavioral.
- Some dimensions are about choosing the target. Applied asks whether the behavior matters to the person; behavioral asks whether you are measuring the behavior itself.
- Some are about evidence. Analytic asks whether you showed a functional relation; effective asks whether the size of the change matters in daily life; generality asks whether the change lasts and spreads.
- Some are about communication. Technological asks whether others could replicate the procedure; conceptually systematic asks whether it is linked to the basic principles it comes from.
- Each dimension answers a different question, so meeting one never guarantees another. A procedure can be described in perfect detail (technological) and still produce changes too small to matter (not effective).
Definitions
- Applied: the target behavior is socially significant, meaning that changing it improves daily life for the person and the people around them.
- Behavioral: the program targets the behavior in need of change (not what people say about it), measures it precisely and reliably, and makes sure the change is in the client's behavior rather than in how observers record it.
- Analytic: the analyst shows a believable functional relation, meaning the behavior changes reliably when the intervention is in place and not otherwise, usually demonstrated and replicated within a single-case design.
- Technological: every procedure is described completely and precisely enough that a reader with the right training could replicate it.
- Conceptually systematic: procedures are described and explained in terms of the basic principles of behavior they come from, rather than as a collection of tricks.
- Effective: the intervention changes behavior enough to make a practical, meaningful difference, judged by its value in the client's daily life rather than by statistical significance alone.
- Generality: the behavior change lasts over time, appears in settings and situations where it was not trained, or spreads to related behaviors that were not directly taught.
Examples from a session
One program, seven checks
Jada, a BCBA, is helping Ms. Reyes, a 72-year-old resident of an assisted-living home, start conversations with other residents instead of staying in her room.
- Applied: Ms. Reyes and her daughter both say loneliness is their biggest concern, so more social contact matters to them.
- Behavioral: Staff count conversation starters in the dining room using a clear definition, and a second observer records some sessions to check agreement.
- Analytic: Jada uses a multiple-baseline design across three settings. Conversation starters increase in each setting only after prompting begins there.
- Technological: The written protocol states the exact prompt, when to give it, how to fade it, and what staff do if she declines.
- Conceptually systematic: The plan explains the procedure as prompting and prompt fading with positive reinforcement through social interaction.
- Effective: Ms. Reyes goes from no conversations a day to several, and she says she now looks forward to meals.
- Generality: Two months later she still starts conversations, including at weekend activities nobody trained.
Non-example: a school program reports that a second grader "seems calmer" on teacher ratings, with no direct count of behavior and no design. It misses behavioral and analytic.
Common mistakes / exam traps
- Mixing up applied and effective. Applied is about which behavior you chose. Effective is about how much it changed. A socially important target that barely moves meets applied but not effective.
- Treating generality as maintenance only. Generality also covers change across settings, people, and materials, and change in untrained but related behaviors.
- Accepting indirect measures as behavioral. Ratings of how someone "seems" or self-reports of what they did are not direct measures of the target behavior.
- Naming a dimension the description already meets. Find the one specific problem: "couldn't replicate it" points to technological, "no principle explains it" to conceptually systematic, "too small to matter" to effective, "only in the clinic" or "gone at follow-up" to generality.
Exam trap
Technological vs. conceptually systematic. The trap: a manual that lists every step looks complete, so technological gets picked as the gap. Technological asks whether a trained reader could carry out exactly these steps; conceptually systematic asks which behavioral principle explains why they work. A detailed write-up with no principles meets the first and misses the second.
Exam trap
Analytic vs. effective. The trap: a large, valued improvement tempts you to call the program analytic. Analytic asks whether a design ruled out other explanations; effective asks whether the change is big enough to matter in daily life. A clean reversal can show a trivial change, and a big change that coincided with a medication switch is not analytic.
Quick check
A clinic's manual for its 'Calm Corner Routine' for children ages 4 to 8 lists every step: what staff say, how long the timer runs, where the child sits, and what to do if the child leaves early. New staff carry it out the same way every time. The manual never explains which behavioral principles the routine relies on. Which dimension is weakest?
Related topics
- Behaviorism vs. EAB vs. ABA vs. science-guided professional practice (A.4)
- The scientific goals of behavior analysis: description, prediction, and control (A.1)
- What makes a design single-case: repeated measures, prediction, verification, replication (D.4)
- Choosing socially valid replacement behavior (H.3)
- Programming for stimulus and response generalization (G.15)