Teaching a child with autism to mand for information using "how".

Children with autism often do not learn to mand for information without structured teaching. Studies have demonstrated that manipulation of establishing operations (EOs), prompts, prompt fading, and differential reinforcement are effective in teaching children with autism to ask "wh" questions such as "what," "who," and "where." To date, no studies have evaluated procedures to teach children with autism to mand for information using "how." Teaching the mand, "how" is uniquely challenging because once the information regarding how to do something is provided, the EO may no longer be present. The following study evaluated a procedure to teach one child with autism to mand for information using "how" to obtain information to complete multiple activities. The results have implications for clinical application and future research on contriving EOs to teach the mand, "how."