Faced with limited resources, schools require tools that increase the accuracy and efficiency of functional behavioral assessment. Yarbrough and Carr (2000) provided evidence that informant confidence ratings of the likelihood of problem behavior in specific situations offered a promising tool for predicting the accuracy of function-based…

Direct methods of functional assessment--through which information is gathered by observing environment--behavior relations--vary with the degree to which environmental events are manipulated. Unstructured (ABC) assessments involve observing the occurrence of problem behavior without altering environmental events in any way. At the other extreme,…