Applied Behavior Analysis. "Applied" means practice, rather than research or philosophy. "Behavior analysis" may be read as "learning theory," that is, understanding what leads to (or doesn't lead to) new skills. (This is a simplification: ABA is just as much about maintaining and using skills as about learning.) - Continue reading -

http://isybeeautism.com/2011/01/aba-what-is-it-and-how-does-it-work/