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What
is ABA?
Applied Behavior Analysis is the use of behavioral
methods to measure behavior, teach functional skills, and evaluate progress. AST uses
Applied Behavior Analysis (ABA) techniques in all of its programs. In fact, AST uses a
blend of different ABA strategies individualized for each child’s intervention needs.
The goal is for an enduring change that will result in an enhanced quality of life.
ABA approaches such as discrete trial training (DTT), Pivotal Response Training (PRT),
Picture Exchange Communication System (PECS), Self-Management, and a range of social skills
training techniques are all critical in teaching children with autism. AST works with
families in deciding on the right mix for the individual child. Ultimately, the goal is to
find a way of motivating the child using a number of different strategies and positive
reinforcement techniques to ensure that the sessions are enjoyable and productive.
Discrete Trial Training
Discrete Trial Training (DTT) is at the heart of every good ABA program. There is strong
evidence that these procedures produce the most rapid gains in developmental successes.
In most cases the ABA program begins with highly structured discrete trials to build
“learning to learn” skills that help the child attend and respond successfully to the
teacher. There is not a single DTT program or curriculum. The most important skill for
an ABA therapist is the ability to individualize the program and make rapid programmatic
changes as the child improves.
Play-Based ABA Approaches
AST believes it is important to go beyond typical discrete trial methods as the child
builds a larger repertoire of communication skills. Play-based ABA approaches gradually
expand sessions into more loose play routines while maintaining the critical components of
the ABA session. This helps prevent prompt dependency and develops better generalization.
Evidence-based ABA approaches such as Pivotal Response Training (PRT) have strong research
support in their ability to produce broader developmental gains through play-based methods.
PRT incorporates principles of Applied Behavior Analysis (ABA) to teach behaviors that
“seem to be central to wide areas of functioning”. PRT targets motivation by getting the
child to respond more and more to expectations to communicate and socialize. The
interventionist makes it easy for the child to receive desired items and interactions, and gradually shapes more and more effective communication, play, and social skills. A lack of social motivation is hallmark to autism. Children with autism typically lack the motivation to learn new tasks and participate in their social environment. A lack of motivation may be observed as temper tantrums, crying, noncompliance, inattention, fidgeting, staring, attempting to leave the teaching situation, or lethargy. The use of PRT can increase the motivation of children with autism, therefore, significantly enhancing the effectiveness of the teaching environment. PRT uses turn-taking, child choice, modeling, shaping, and direct reinforcement to increase appropriate social and communication behaviors in children with autism. For some children with autism a blend of Discrete Trial Training (DTT) and PRT is necessary to maximize the child’s learning potential. The right proportion of intervention techniques is decided through close supervision
Combining Interventions
Both play-based ABA methods and traditional Discrete Trial Training
(DTT) incorporate the major principles of Applied Behavior Analysis to teach skills to
individuals with Autism or other Developmental Disabilities. Most Pivotal Response Training
programs utilize discrete trials as needed. AST’s programs are flexible enough to allow for
the benefits of both types of ABA approaches, to individualize each child’s programs. It is
now standard practice in the field of ABA for programs to incorporate play based methods
with highly structured DTT methods to meet the child’s level of progress. This is even
stressed in the methodological descriptions of recent Lovaas replication projects. At AST
the process of fitting the program to the child’s needs is discussed with each family, so
that parents understand the benefits of PRT and DTT and how each will be applied.
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