Applied Behavior Analysis Technician (ABAT) Practice Test

The best definition of 'initial behavior' is the starting point of behavioral shaping. In the context of applied behavior analysis, especially during the shaping process, identifying the initial behavior is crucial for establishing a baseline from which to make systematic changes. This initial behavior serves as the foundation upon which successive approximations toward the target behavior are built. By defining the initial behavior, practitioners can create a plan for gradually reinforcing behaviors that are closer to the desired outcome.

The other options do not encapsulate the meaning of initial behavior in the context of behavioral shaping. The first occurrence of any behavior simply refers to the first instance without considering its relevance in shaping a new behavior. The final goal behavior and the last behavior in the sequence pertain to the outcome of the shaping process rather than the starting point, which can lead to confusion about the stages of behavior modification.