Scatterplots in Behavior Analysis

Scatterplots

• Scatterplot graphs are used to identify patterns related to when behaviors occur.
• The points on a scatterplot are not connected because the plot typically covers multiple days and times, looking for clusters and overlap of instances of the target behavior.
• The structured nature of schools makes scatterplots very useful to behavior analysts in that setting.
• Scatterplots are commonly used in schools to identify circumstances and times of day when behaviors occur more frequently.

Interpreting Scatterplots

• If many data points appear around one time of day, it signals the behavior analyst to take a closer look at what is going on during that time to determine a possible function for the target behavior.
• Data Collection:
  • At the end of each interval of time, the technician marks whether or not the target behavior was observed each day.
  • This data is then graphed in hopes that patterns become evident.
  • Ideally, clusters of data points are observed during similar times across multiple days.
• This gives the behavior analyst an idea of where to start when working to address the target behavior.

Example

• Axes:
  • X-axis: Day of the week
  • Y-axis: Number of observed instances of hitting
• Observation:
  • Hitting behaviors are observed most frequently on Tuesdays and Wednesdays.
• Action:
  • This should signal the behavior analyst to schedule supervision sessions on these days to try to determine the function of the hitting behavior.