Having a specific intervention for the behavior that all individuals use with child would help reduce the behavior. As you talked about the different reactions are maintaining the behavior. If all individuals intervene in the behavior using the same body language, tone of voice, and scripted language you used then the behavior would reduce as the maintaining factor was removed. However, it would also be important to increase positive attention for behaviors you did want to see. Someone once said pay attention to the behaviors you want to see the most. :)

no reaction at all from everyone, everyone has to be on the same page. when he is talking and isnt using inappropriate language positive reinforcement..lots of it .." I like the way yer talking" nice words..no mention of the other words..its attention seeking behavior.

This might work for some:)I remove Ike from the room and he him write sentances such as "I will use nice words." He must write them befor he is allowed any privs like toys, t.v, games. Positive sentances not neg. I started with 5. But it works well for me. Sometimes he get up to 25.

Unfortunately when using profanity it is always with emphasis. It is that word that stands out. When a kid uses profanity it is a attention seeking behavior. In a case like this the less attention paid to it the better. No commenting at all with the use of profanity, lots of positive reinforcement when he isnt using profanity.

This I posted 4 months ago...so update...the N word is out of his vocabulary now...we made him watch shindlers list and talked about how negative words dehumanize people...and lead to inhuman treatment. We looked at photos online showing graphic and terrrible things that has happened to people in the past. The behavior is now corrected.