 Functional assessment folks often known as functional behavior assessment or FB small a or small FBA whichever way you want to do it. It's a systematic evaluation of behavior in the context to figure out what you think is maintaining the responses and then you can start to target the problem responses or the the desired responses to increase or decrease them depending on which one you're trying to do. This allows when somebody says well why is Billy Bob engaging in that behavior? Well let's do an FBA and find out. Actually it should be more like well let's do an FBA and make a reasonable educated guess about what we think is really maintaining the behavior because you don't really know until you do an FB big a which is a functional behavior analysis. So functional behavior assessment, systematic evaluation to try and find out what is maintaining particular behaviors probably problem ones and then which is different than the FB big a. Anyway we often call them functional analyses which is why we have two videos on the same topic.