The Seven Dimensions of ABA, Explained Simply

The seven dimensions of applied behavior analysis are the ground rules of the field. They were written by Baer, Wolf, and Risley in 1968. They still define what counts as ABA today.

The seven are applied, behavioral, analytic, technological, conceptually systematic, effective, and generality. Each one names a quality good ABA work must have. This page explains them in plain words and shows why they still matter for BCBAs, RBTs, and students.

The seven, in plain words#

Each dimension answers a simple question about your work. Applied means the goal matters to real life. Behavioral means you measure real, observable actions. Analytic means you can show your plan caused the change.

Technological means your steps are clear enough to repeat. Conceptually systematic means your methods tie back to known principles. Effective means the change is big enough to matter. Generality means the change lasts and spreads to new settings.

Kendra Thompson reminds us how old and how sturdy these ideas are.

So many of you, if you are behavior analysts, will be familiar with the seven dimensions that Bear, Wolf, and Risley wrote about way back in 1968 and still hold true in our science today. From the talk. Kendra Thompson

The dimensions as a test#

The seven are not just a list to memorize. Together they work as a test. If a method meets all seven, it belongs in ABA. If it does not, it falls outside. Dr. Tom Szabo frames them this way.

You are beholden to staying true to the guidelines, the dimensions of behavior analysis that were laid down by Daryl Wolf and Ristley in 1968. From the talk — Dr. Tom Szabo

This test does not care about labels. A method passes on its qualities, not its name. Szabo puts the bar in plain terms. If your work can do all of these things, it has passed the test of applied behavior analysis.

This is a useful way to judge new practices. When a fresh idea appears, run it through the seven. That keeps the field honest without shutting out growth.

The socially significant heart#

Two dimensions carry extra weight in daily practice. Applied and effective keep the work tied to real life. The goal must matter, and the change must be real. Kendra Thompson connects this to working with the client.

ACT training interventions focus on socially significant goals, procedures, and outcomes with a major focus on co-creating those goals with the person that you're supporting. From the talk. Kendra Thompson

Co-creating goals is a modern touch on an old idea. The applied dimension always meant "important to the person." Building goals with the client makes that promise real. It is not enough for the change to be measurable. It has to matter to the person living it.

Clear enough to repeat#

The technological and conceptually systematic dimensions keep ABA a science. Your steps must be plain enough for another person to copy. And they must connect back to known behavior principles. Thompson explains both together.

the procedures should be described clearly and therefore be replicable. And of course, conceptually systematic. Because the BA is a science, the procedures should and can be related to behavioral principles. From the talk. Kendra Thompson

This is why write-ups matter so much. A vague plan cannot be repeated or checked. A clear plan tied to principles can be tested by anyone. That is what separates a science from a set of guesses.

Should there be an eighth?#

Some leaders think the list should grow. The field has learned a lot since 1968. Szabo argues that compassion deserves a place.

I might suggest that it's time for us to revisit these seven dimensions and add to them... I think there's some really, really solid foundations for adding that as an eighth dimension of applied behavior analysis today. From the talk — Dr. Tom Szabo

This is a live debate, not a settled fact. The original seven still hold. But voices like Szabo's push the field to reflect. Adding compassion would name something many clinicians already value.

Using the seven in daily work#

The seven dimensions are not just for textbooks. They can guide your daily choices. Treat them as a quick checklist for your own plans.

Before you start, ask if the goal is applied and effective. Does it matter to the person's life? Will the change be big enough to notice? If not, rethink the goal.

While you work, ask if the plan is technological and conceptually systematic. Could another clinician repeat your steps from your notes? Do those steps tie back to known principles? Clear, principled plans hold up under review.

After you finish, ask about generality. Did the change last over time? Did it spread to new settings and people? A skill that only shows up in one room is not done yet. Running this check keeps your work honest and strong.

What the research says#

Researchers still use the seven dimensions to judge and shape work. One review used them to sort behavior-analytic studies of adults with dementia. It found only a handful of studies, most published outside core ABA journals (Lucock, Z. R., Sharp, R. A., & Jones, R. S. P. (2018). Behavior-Analytic Approaches to Working with People with Intellectual and Developmental Disabilities who Develop Dementia: a Review of the Literature. Behavior Analysis in Practice, 12(1), 255-264. https://doi.org/10.1007/s40617-018-0270-8).

The seven also frame debates about scope. One paper asked whether ACT training truly meets the seven dimensions and the BACB task list. The authors argued the case was not yet strong enough to call it clearly behavior analytic (Cihon, J. H., Schlinger, H. D., Ferguson, J. L., Leaf, J. B., & Milne, C. M. (2022). Is ACTraining Behavior Analytic? A Review of Tarbox et al. (2020). Behavior Analysis in Practice, 18(1), 29-33. https://doi.org/10.1007/s40617-022-00680-1).

Some scholars want to widen the toolbox while keeping the dimensions. One article suggested adding qualitative methods to support social validity, judged against the seven dimensions of ABA (Burney, V., Arnold-Saritepe, A., & McCann, C. M. (2023). Rethinking the Place of Qualitative Methods in Behavior Analysis. Perspectives on Behavior Science, 46(1), 185-200. https://doi.org/10.1007/s40614-022-00362-x). The dimensions stay the anchor even as methods grow.

FAQ#

What are the seven dimensions of ABA? They are applied, behavioral, analytic, technological, conceptually systematic, effective, and generality. Baer, Wolf, and Risley named them in 1968. Together they describe what makes an intervention true applied behavior analysis.

Why are the seven dimensions still used today? They give the field a shared standard for quality work. They keep interventions tied to real goals, clear methods, and lasting results. Experts still use them to test whether new practices count as ABA.

Is there an eighth dimension of ABA? There is no official eighth dimension. The original seven still stand. But some leaders, like Dr. Tom Szabo, argue that compassion should be added. It remains an open discussion in the field.

Want to see the dimensions applied to newer practices? See From Research to Practice: Seven Acceptance and Commitment Training Practices You Can Begin Using Today.