Antecedent, behavior, and consequence (ABC) charts and scatterplots are descriptive assessment methods that use direct observation to record behavioral events in a systematic manner. Most frequently, they are applied to investigate events that maintain challenging behaviors and involve observation of behavior in the context and settings in which it is problematic. These recording procedures can provide vital information regarding the (a) conditions under which behaviors occur, (b) formation of hypotheses about the functions of behavior, and (c) development of effective and efficient behavior support plans.

A scatterplot is a data collection system used to record and visually display behavioral patterns over time. A grid is created with intervals, defined as time periods (e.g., 10-minute blocks) on the vertical axis and days across ...