Flashcards Directions: "Please add definition for each term written below. Resources: www.flashcardmachine.com, www.quizlet.com" Chapter 3 Chapter 4 ABC recording celeration anecdotal observation count behavior checklist direct assessment behavior assessment duration ecological assessment event recording function - based definition frequency social validity indirect assessment target behavior interresponse time (IRT) topographic - based definition magnitude measurement pernament product recording momentary time sampling partial - interval recording percentage planned activity check (PLACHECK) rate reactivity repeatability response latency temporal extent temporal locus time sampling topography trials-to-criterion whole - interval recording