The Importance of Generalization
Thursday, June 18th, 2009 · Tagged asd, assessment, Autism, Book, generalization, measurement, outcome, Real Life, Real Progress, Thoughts on Autism and treatment · Permalink Comments
In our teaching and learning endeavors with children, we often are driven by the ultimate outcome and functionality of a skill without even realizing it. Behind this motivation for teaching is the value and importance of generalization, we want our students to be able to learn something in an instructional setting and apply it in a functional setting. Think back to the days when you learned the alphabet. Now think of how easily you were able to learn that A is A, no matter what color it is, how tall it is, what kind of paper it is on, if it was on the fridge or in a book, or who might be asking you about it. And notice how you did not forget that A is A once you mastered the skill. This is generalization.
Difficulties with generalization of skills are well-known in individuals with autism spectrum disorders (ASD) and to those who work with them. These difficulties often will mean that generalization will not just occur, but rather will need to be explicitly programmed and planned for in educational and therapeutic settings. Thus, it is important to think of generalization issues as being the responsibility of the teacher, rather than as a deficit in the child. Individuals with ASD frequently cannot functionally use what they have learned in a structured teaching situation and be able to apply it to other similar settings or with different materials and people. Often times children with ASD will need specific planning for maintenance of a skill and programming that can naturally embed learned skills into functional activities so that the skill is constantly and systematically reinforced over time. It is absolutely essential to program and plan for generalization, the “train and hope” approach (just teaching the skill and hoping it will generalize), is not sufficient.
If you are interested in more information on generalization, start with this article: Stokes, T. F., & Baer, D. M. (1977). An implicit technology of generalization. Journal of Applied Behavior Analysis, 10, 349-367, available for purchase at http://seab.envmed.rochester.edu/jaba/. Please note that this website has lots of full text articles available as well as abstracts for their articles going as far back as 1968. They have a great search feature so that you can get right to the information you are looking for. For example if you search for autism, you will get a list of links to abstracts and full text articles having to do with studies conducted relating to autism all the way back to 1968. Here are some strategies for programming for generalization from the Stokes & Baer article:
1) Use naturally reinforcing and occurring materials - Seek to change behaviors that receive reinforcement in the student’s natural environment. For example - learning colors because the child has a favorite color of Popsicle, M&Ms, and ice cream flavor is likely to be more maintained and generalized than learning colors by sorting colored blocks into color bowls.
2) Train Loosely - Adding variety to skills being taught. This will include using a variety of materials in a variety of ways and in a variety of situations. Ideas and approaches used in incidental teaching or naturalistic ABA tend to foster better generalization because these instructional environments more closely resemble the ultimate outcome. Studies have shown that the more naturalistic instructions and presentations of SDs tend to have better learning outcomes to intensive instruction.
3) Train Sufficient Exemplars - Providing many examples of the target response. An example of this is the computer-assisted instructional program, TeachTown: Basics , which has many examples incorporated into every lesson. You will notice many examples of one particular vocabulary word. You will also notice that pictures used in the pretest and posttest are different from the pictures used in the training lessons. Additionally, in the off computer activities there are many ideas that include the use of materials found around the house or classroom.
4) General Case Programming – Use many examples of stimuli, use many teachers, try different settings, and lots of materials.
-Using a vending machine at local community center, using similar vending machine at school, using another similar one at the grocery store…
-When teaching car, you would consider pictures of cars, different cars, toy cars, riding in family’s cars, labeling cars on the street, etc.
-When teaching social skills like saying hi, saying hi to people where you know a name for them, saying hi to people when you don’t have a name for them, pretending to say hi to stuffed animals, pretending to say hi to pictures of friends, having dolls say hi to each other, etc.
Generalization should not only be planned for in the teaching situation, but measurement of generalization is critical so plans should be made up front for how to assess it. This can be
done by taking a skill that was taught and try it with new materials, go on an outing into the community (the zoo, park, beach, grocery store, etc.), and most importantly try it with mom, dad, and/or siblings. It is critical that generalization is assessed everyday with each newly acquired skill. If the child isn’t showing functional use of the skill in naturally occurring activities and routines, stop adding new programs and goals and focus planning and programming for generalization for his/her recently acquired skills. If the skill has not generalized, the skill cannot be considered truly mastered!
Although the term “generalization” is often heard in the ABA (Applied Behavior Analysis) literature, there is no intervention in which generalization is not important, regardless of the philosophy. In seeking interventions for a particular child, it is essential to ask the treatment providers how they will program for and measure generalization, or real outcome. Regardless of the impressive statistics of a treatment program, if the children do not demonstrate generalization in the real world, the results of the treatment program may not be as impressive as they seem. A good resource for learning more about generalization, the research, and strategies for various interventions is Real Life, Real Progress for Children with Autism Spectrum Disorders: Strategies for Successful Generalization in Natural Environments (Whalen, 2009).

y people exchange gifts during the winter holidays. This can be a source of great disappointment for family and friends of a child with ASD. As a behavior therapist, I once special ordered a beach magnet set for a child I worked with one-on-one, three hours a day, five days a week. I was sure he would love it. I imagined all the exciting language he would produce when we played with those magnets. I heard in my mind spontaneous comments he would make and squeals of delight he would emit. As you probably guessed, the boy opened the magnet set, said nothing, put it down, and picked up another toy. I tried to engage him with the magnets through my enthusiasm. Nothing worked. I have heard similar stories from parents and educators time and again. Even when the child showed intense interest in a toy when it belonged to someone else or requested the toy, the same toy is often of little interest to the child when received as a holiday gift. As a parent, there is nothing you can do to prevent this. If you have a neurotypical child, you may have complained that he or she only played with a new toy for a day and lost interest. This is part of being a parent, but it is especially disheartening when your child is on the Autism Spectrum, has limited interests, and you worked so hard to find that special gift. Remember that your effort is special regardless of the immediate reaction to the gift. And time may reward your effort. I heard that the beach magnet set became a preferred toy for the boy I worked with over a year later.