Line Graph
Also called: equal-interval line graph
Definition
The standard display in behavior analysis: sessions or time on the horizontal axis, the measure of behavior on the vertical axis, data points connected within a condition, and vertical phase-change lines separating conditions. Points are not connected across phase lines, and the axes are labeled and scaled so that the size of a change is not exaggerated or hidden.
In plain language
Dots for each session joined by lines, with a vertical line wherever the plan changed. It is how behavior data are usually shown.
Example
Daily counts of requests plotted across baseline and teaching phases, with a dashed line where teaching began.
Not line graph
A single bar per condition showing the average. That hides the session-by-session pattern the line graph exists to show.
See also
Written from
- johnston-pennypacker-2020
Written from Johnston, Pennypacker and Green (2020). No textbook glossary consulted.
This entry has not yet been through clinical review. Treat it as a draft.