Characteristics of Good Definitions

So, you here all the time that you need to write good, clear definitions when defining target behaviors.  For example, you would not just define a target behavior as "hitting" because what one person might score as hitting, another person might not. 

Therefore, it is VERY important that you learn how to write good definitions.

So, what are the characteristics of good definitions?

Objective

The definition should only refer to events that are observable.  

For example:  You cannot say that the client has to be "sad" or appear "angry" when hitting for it to be scored as hitting.  However, you can say that the client has a negative affect, it is paired with crying, etc.  All of the events have to be observable.

Objective=Observable

Clear

It has to be readable and unambiguous.

There should not be any questions.  For example, if you are writing a definition for eloping, you should put how many feet the client has to leave the area for it to be scored as eloping.  Otherwise, the therapist might have many questions about what is considered eloping

Clear=unambiguous

Complete

Precise and concise definitions

Complete=precise