ABA vs. DTT:
Understanding the Difference
Two terms you will hear frequently in autism therapy — and why understanding the distinction matters for your child's care.
The Short Answer
Applied Behavior Analysis (ABA) is the overarching science and therapy framework. It is a broad, evidence-based discipline that uses the principles of learning and behavior to help individuals develop skills and reduce behaviors that interfere with daily life.
Discrete Trial Training (DTT) is one specific teaching technique used within ABA. Think of ABA as the entire toolbox, and DTT as one of the tools inside it.
A well-designed ABA program will draw on many different teaching strategies — DTT being one of the most well-researched — and will select the right approach based on what each individual child needs at any given moment.
What Is ABA Therapy?
ABA therapy is grounded in decades of scientific research on how behavior is learned and how it can be changed. At its core, ABA looks at the relationship between a person's environment and their behavior — identifying what triggers a behavior and what consequences follow it — and uses that understanding to teach new, meaningful skills.
ABA is not a single method. It is a flexible science that encompasses many teaching strategies, including:
A Board Certified Behavior Analyst (BCBA) designs each child's ABA program, selecting and blending these strategies based on the child's assessment results, learning style, age, and goals.
What Is Discrete Trial Training (DTT)?
DTT is a structured teaching method that breaks a skill down into its smallest components and teaches each component through repeated, clearly defined practice trials. Each trial follows a predictable three-part sequence:
DTT is particularly effective for teaching foundational skills such as matching, sorting, identifying objects, following instructions, imitation, and early language. Its structured, repetitive nature helps children with autism learn skills that might be difficult to acquire in less predictable environments.
However, DTT alone is not a complete ABA program. Skills learned in a structured DTT setting must be generalized — practiced in different environments, with different people, and in natural contexts — which is why Natural Environment Teaching and other strategies are essential complements.
ABA vs. DTT at a Glance
| Dimension | ABA | DTT |
|---|---|---|
| What it is | A science and therapy framework | One specific teaching technique |
| Scope | Broad — encompasses many methods | Narrow — a single structured approach |
| Setting | Home, school, clinic, community | Typically a structured table-top setting |
| Child-led vs. therapist-led | Varies by technique used | Primarily therapist-directed |
| Best for | All skill areas across all settings | Foundational, discrete skills (matching, labeling, imitation) |
| Generalization | Built into program design | Requires additional strategies to generalize |
| Evidence base | Decades of research across populations | Well-researched as a component of ABA |
Our Approach to ABA Therapy
At Autism Centers of Pittsburgh, our BCBAs design individualized ABA programs that draw on the full range of evidence-based strategies — including DTT, Natural Environment Teaching, Verbal Behavior, and social skills training. We do not take a one-size-fits-all approach.
Your child's program is built around their unique profile: their strengths, their learning style, their goals, and your family's priorities. We continuously monitor progress and adjust strategies to ensure your child is always moving forward.