Petursdottir et al. (2008) answer the following questions:

List the operational definitions of all target behavior(s). State how the data were measured and graphed.

In your own words, provide a description of all the experimental procedures used in the study. Summarize level, trend, and variability for one participant.

What contributions to the science and practice of ABA did this article provide? In other words, what was the main take away points) of this article?

What is the social validity of this experiment or procedure. Consider habilitation and how the individual's like may have been improved.