On track. It sounds as though you're interested in taking frequency data, so you can explicitly state that, and explain how do you do this? For the analysis, indicate that the BCBA would analyze the line graphs to determine whether the target behavior changed in the desired direction as a function of treatment, and how do you write this? Scenario: Measurement System: Measure: Event recording Data Collection: The teacher, paraprofessional, and other staff will use tally marks to track how often the student uses replacement behaviors. Analysis: Tally marks on an event recording sheet for a 20-minute period during independent time, structured teaching time and unstructured time (playground, cafeteria, and library). Comparing the settings to see if there is a higher rate during one or the other