Interactions are evident in intersecting or eventually intersecting lines in a bar graph of the cell means.

Question

Quizplus · Accepted Answer

Interactions in the context of a bar graph of cell means (typically from a factorial design in statistics) are suggested by the non-parallelism of the lines connecting the means. If the lines remain parallel, it indicates no interaction; if they intersect or diverge, it suggests an interaction between the factors.

Interactions Are Evident in Intersecting or Eventually Intersecting Lines in a Bar