The vertical axis of a graph, which displays the quantitative values of the measured behavior (e.g., count, percent correct).

On a line graph, the degree to which the data points bounce around the data path.

The horizontal axis of a graph, which frequently represents the dates or sessions across which data were collected.

On a line graph, the overall direction of the data path.

A line drawn on a line graph that represents the general direction of the data; used to visually analyze the overall trend of the graphed data.

Specific marks on, or breaks in, the x-axis (i.e., horizontal axis) indicating the time periods during which data were not collected.

A method of analyzing the trend of the data on a line graph that involves dividing the data into two equal parts and establishing intersections for mid-rate and mid-date points…

A horizontal line on a line graph established by calculating the average of the graphed data points; used to signify the degree to which data points converge on the y-axis.

A horizontal line on a line graph established by calculating the median of the graphed data points, used to signify the degree to which data points converge on the y-axis.

Something within a person’s environment that can be a barrier to the effectiveness of behavior analysis-based services.

A line that connects successive data points within a specific phase of treatment or condition on a graph.

Specific symbols on a graph that represent the measurement of a behavior, recorded during a specific observation period.

Vertical lines, drawn upward from the x-axis to the top of the graph, that separate the points in time of different independent variable conditions or important changes within a treatment…

PTB co-founder Dana Meller reviews a question about using cumulative records and their significance in behavior analysis. Learn how to utilize cumulative graphs to track behavior over specific time periods and measure and calculate response rates for insightful data analysis. Refer to BCBA® Task List (5th ed.) Section C-11: Interpret graphed data.

Test your knowledge of ABA graphs with PTB co-founder Dana Meller as she reviews a BCBA® mock exam question about equal-interval graphs, exploring their unique properties. Included, Dana explains the concept of proportional values and highlights the graph(s) which operate on a logarithmic scale, offering a different perspective on changes in behavior. Refer to BCBA® Task List (5th ed.) Sections C-10: Graph data to communicate relevant quantitative relations (e.g., equal-interval graphs, bar graphs, cumulative records); C-11: Interpret graphed data.

Test your ability to interpret graphed data with PTB co-founder Dana Meller. Here she explains the three fundamental properties of behavior change, focusing on one specific property akin to an average or median. Included are descriptions of level, trend, variability, and the y-axis. Refer to BCBA® Task List (5th ed.) Section C-11: Interpret graphed data.