ABA Exam CoachLessons · C. Measurement, Data Display, and Interpretation
C.10 · Choosing the right graph
A graph can make a small change look huge, or hide a real one completely. Let's learn how to pick the graph that actually fits your data, and how to read a cumulative record without falling into its classic trap.
Key takeaway
Pick the graph that fits the question. An equal-interval line graph shows level, trend, and variability across phases. A bar graph compares categories or condition summaries but hides session-to-session variability. A cumulative record only goes up, so its slope shows rate and a flat stretch means no responses.
Pick the graph that fits the question. An equal-interval line graph shows level, trend, and variability across phases. A bar graph compares categories or condition summaries but hides session-to-session variability. A cumulative record only goes up, so its slope shows rate and a flat stretch means no responses.
Members get the full lesson video, notes and a 5-question test
The video walks through the idea, worked examples, the trap people fall into and an exam-style question. The notes and the checkpoint come with it, and your results feed your Where to focus plan.