L P Hagopian

Toward the development of structured criteria for interpretation of functional analysis data.

B. Iwata, W. Fisher, L. Hagopian, 1997, Journal of applied behavior analysis.

The use of symmetrical "do" and "don't" requests to interrupt ongoing activities.

L. Hagopian, L P Hagopian, J D Adelinis, 1999, Journal of applied behavior analysis.