DTT, NET and PRT are three different teaching methods within ABA therapy. DTT teaches skills through short, structured trials at a table. NET moves learning into natural situations: play, walks, lunch. PRT develops pivotal skills, including motivation and initiative, through play and the child's own choices.
Below we look at each method, compare them in a table and explain how to choose an approach. This will help you find your bearings, but it does not replace an individual program.
What ABA is and why it has several methods
ABA (Applied Behavior Analysis) is a scientific discipline that studies how the environment affects behavior and uses these patterns to teach new skills. You can read more about the approach on the ABA therapy page.
A method in ABA is a specific way of organizing teaching. The same principle of reinforcement can be applied at a table, in play or during everyday activities. That is why ABA has several methods, and a strong program usually combines them.
One of the best-known works in this field is Ivar Lovaas's 1987 study. It showed that an intensive early behavioral program can significantly improve the development of some children with autism. Since then the approaches have evolved a lot: from rigidly structured sessions to more flexible, play-based methods such as NET and PRT.
DTT: discrete trial training
DTT (Discrete Trial Training) is a method in which a skill is broken into small separate steps, and each step is practiced in a short trial with a clear beginning and end.
One trial has three parts:
- An instruction from the adult.
- The child's response.
- A consequence: praise, a favorite item or a correction.
Example. An adult puts two cards in front of the child and asks: "Show me the apple." If the child points correctly, they immediately get praise or a small reward. Then the trial is repeated.
Strengths of DTT: high precision, easy progress tracking, effective for new and complex skills. Limitations: a skill can stay "at the table" and transfer poorly to real life unless other methods are added.
NET: natural environment teaching
NET (Natural Environment Teaching) is a method in which a skill is built in everyday situations, and the child chooses the motivating items and activities.
Example. The child reaches for a ball on a shelf. The adult does not hand it over right away but waits until the child points to the ball, says a word or makes a gesture. Then the child gets the ball and you play together.
Strengths of NET: the skill is immediately reinforced in a real context, speech becomes more spontaneous, the child interacts more willingly. Limitations: it is harder to control the number of repetitions and to measure results precisely.
A comment from an ABA specialist: "The most common reason a skill 'doesn't work' at home is that it was practiced only at the table. The child names pictures correctly in a session but doesn't ask for water when thirsty. This is where NET helps."
PRT: pivotal response training
PRT (Pivotal Response Training) is a method that works not with separate skills but with "pivotal" areas of development: motivation, initiative, responding to multiple cues and self-management.
The method was developed by Robert and Lynn Koegel and their colleagues. The idea is simple: if you improve these pivotal areas, the changes spread to many other skills, including speech, play and social interaction.
Example. The child chooses a toy from several options. The adult supports their attempt to ask, even if the word is unclear, and gives the toy right away. This is how the desire to communicate develops.
Strengths of PRT: high motivation, natural rewards, parent involvement, good for developing initiative. Limitations: it requires the adult to react quickly and adapt flexibly.
DTT, NET and PRT: a comparison table
| Criterion | DTT | NET | PRT |
|---|---|---|---|
| Format | Structured, at a table | In natural situations | Play and interaction |
| Who leads | Mostly the adult | The child and adult together | The child chooses, the adult supports |
| What it's for | New and complex skills | Transferring skills to everyday life | Motivation, initiative, speech |
| Reward | Often specially selected | Natural, tied to the situation | Direct, tied to the attempt |
| Measuring results | Very precise | Moderate | Moderate |
| Main risk | The skill "gets stuck" at the table | Few repetitions | Requires an experienced adult |
How to choose an ABA method: a step-by-step guide
Choosing a method means matching the approach to a specific goal, the child's skill level and motivation, not choosing the "best" method in general. The basic logic is:
- Set one goal. For example: pointing to objects, asking for help or starting a conversation.
- Assess the current skill level. Can the child imitate, look at the person they are talking to, respond to instructions?
- Check motivation. Find out what really interests the child, because without it no method works.
- Choose a method. DTT for new and complex skills, NET for transfer to everyday life, PRT for developing initiative.
- Track the results. Keep simple records and discuss them with a specialist.
In practice the methods are rarely used on their own. Often a new skill starts with DTT, is reinforced through NET, and motivation and initiative are supported with PRT.
Common parent mistakes
A common mistake is an action that seems logical but reduces how effective teaching is. The most frequent ones are:
- Working without a clear goal and not tracking progress.
- Using only one method for all tasks.
- Giving a reward that does not motivate the child.
- Keeping the child at the table too long, until interest is gone.
- Prompting too much, so the child gets used to waiting for help.
- Expecting quick results and stopping after the first difficulties.
When you need a specialist
It is worth contacting a specialist when the child is not progressing despite regular attempts, when there are behavioral difficulties or when parents are not sure where to start. A certified ABA therapist will carry out an assessment, set priorities and create an individual program.
It is especially important not to postpone a consultation if there are strong behavioral reactions, a regression in speech or the child barely interacts with others. According to many studies, starting help early increases the chances of a good outcome.
What's next: from understanding the methods to practice
This article explains the principles and the difference between the methods, but understanding alone is not enough for results. You need a sequence of steps, practical tasks and feedback.
That is what the ABA therapy course gives you: a complete step-by-step system, templates, checklists and breakdowns of specific situations. It will help parents and those starting out in the profession apply the methods confidently in practice.
Frequently asked questions
What is the difference between DTT and NET?
DTT is short, structured trials at a table with a clear beginning and end. NET is teaching in natural situations, when the child shows interest in an item or activity on their own.
What is PRT in simple terms?
PRT is a method that develops pivotal skills, such as motivation and initiative, through play, the child's choices and natural rewards.
Which ABA method is best for a child with autism?
There is no single best method. An effective program usually combines DTT, NET and PRT depending on the child's age, skills and motivation.
Can you do ABA sessions at home on your own?
Parents can use simple elements at home, such as encouraging desired behavior. But it is better to create the program together with a certified specialist.
From what age are ABA methods used?
An early start is considered more effective, so ABA methods are often used from 2–3 years old. The program is always chosen individually.
How long does it take to see results from ABA?
The first changes in individual skills can appear within a few weeks, but stable progress depends on how regular the sessions are and on the child's individual characteristics.
