What is it?
Discrete trial training (DTT) is an adult-directed method of instruction that is used to teach specific targeted behaviours. In behaviour support programs, DTT might be used to teach a replacement behaviour, such as asking for a break. Features of DTT include:
- one on one instruction in a distraction-free setting
- precise behavioural objectives
- massed trials (many repetitions)
- the use of strong reinforcers
- collection of data to plot skill mastery.
Discrete trial training is an important part of Applied Behavioural Analysis (ABA) programs and is not commonly used in isolation in a classroom. DTT is well researched and considered an evidence based intervention. It is, however, time consuming and resource-intensive and thus unlikely to be successfully implemented in a typical classroom situation. In addition, DTT can be limited by difficulties with generalising the skills learned in the DTT condition to other settings.
How do I use it?
Using DTT requires training and support with trained professionals. Teachers and others should contact support personnel if interested in this strategy.
Age group
DTT is more commonly used with younger age groups with accommodations made for age and ability.
| Preschool | Yes, with appropriate training and support |
| P–2 | Yes, with appropriate training and support |
| 3–6 | Possibly, with appropriate training and support |
| High school | Possibly, with appropriate training and support |
Where can I learn more?