Graphs as aids to knowledge construction: Signaling techniques for guiding the process of graph comprehension.

@article{Shah1999GraphsAA,
  title={Graphs as aids to knowledge construction: Signaling techniques for guiding the process of graph comprehension.},
  author={Priti Shah and Richard E. Mayer and Mary Hegarty},
  journal={Journal of Educational Psychology},
  year={1999},
  volume={91},
  pages={690-702}
}
Graphical displays are frequently used to express quantitative information in texts, but viewers are sometimes unable to comprehend and learn the relevant information. According to a cognitive analysis, graph interpretation involves (a) relatively simple pattern perception and association processes in which viewers can associate graphic patterns to quantitative referents and (b) more complex and error-prone inferential processes in which viewers must mentally transform data. Experiment 1… 
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