Guest Blog Post by Dr. Katherine May, Ed.D., BCBA Tact Extensions: Once a tact has been established, the tact response can occur under novel stimulus conditions through the process of stimulus generalization. In other words, there are many ways to label one stimuli. Skinner (1957) identifies four different levels of generalization based on the degree to which novel stimuli share…
Response Class v. Behavior Repertoire Response class and behavior repertoire are two terms that may appear on your board certified applied behavior analysis (BCBA) qualification exam. They are simple yet often overlooked terms. Response Class Response class refers to all the behaviors that serve the same function. This is regardless of whether they are perceived to be “good” or “bad.” …
What is a behavior? A behavior refers to any interaction between an organism and its environment that changes the environment in some way. For example: Clapping your hands, walking, making dinner, ordering a pizza, sleeping, sneezing. Anything that a dead person could not do is a behavior. An inanimate object cannot engage in a behavior. For example, a paper blowing…
Why Conduct Baseline Probes The purpose for conducting baseline probes is to establish a control in an experiment. In order to know whether or not an intervention (independent variable) changed a behavior (dependent variable) you would need a reference as to how often the behavior occurs prior to starting an intervention. You can learn some other very important things when…
Applied behavior analysts seek to change socially relevant behavior by manipulating the environment to make a behavior occur more or less often. To do so, applied behavior analysts require two features of a behavior and make two assumptions about a behavior. Features: Behavior is individual In applied behavior analysis (ABA) a feature of behavior is that ALL behavior is individual.…
Experimental control is the degree to which the same intervention can be shown to have a predictable effect on behavior. The point of experimental control is to demonstrate a functional relationship between a behavior (dependent variable) and intervention (independent variable). In applied behavior analysis, (ABA) behaviorists are constantly validating that interventions work by analysis and experimentation. If a behavior change…
In this brief article, we will define a behavior chain and explore chaining as a teaching procedure. Behavior Chain A behavior chain is a series of discrete behaviors that are linked together to produce end results. All steps are a discriminative stimulus (sd) for the next behavior in the chain and a conditioned reinforcer for the previous behavior in the…
When a person thinks about punishment, they often think about one person doing something “bad” or “aversive” to another person as a negative consequence for what they did. That is not how punishment is defined in applied behavior analysis (ABA). Punishment is when a behavior results in a consequence that makes it less likely to occur again. For example, if…
In this brief blog article, we will define a contingency contract and provide examples. A contingency contract is a written agreement between two people that specifies a behavior that one person agrees to engage in and a reward that another person agrees to give as a result. When Should You Use a Contingency Contact? You should use a contingency contract…