This document appears to be a quiz assessing knowledge of the PECS (Picture Exchange Communication System) program, which teaches communication skills to children with limited language abilities. The 10 multiple choice questions cover topics like the maximum number of icons that can be on the bottom strip of a PECS book, examples of rejection versus preference in item selection, the phase where a new icon is introduced, the steps in a 4-step error correction procedure, whether items should be labeled during correspondence checks, how many data marks should be on a PECS data sheet, and how often correspondence checks should be done in later PECS phases.