The Comprehensibility of Printed Instructions and the Flowchart Alternative

@article{Kammann1975TheCO,
  title={The Comprehensibility of Printed Instructions and the Flowchart Alternative},
  author={R. Kammann},
  journal={Human Factors: The Journal of Human Factors and Ergonomics Society},
  year={1975},
  volume={17},
  pages={183 - 191}
}
  • R. Kammann
  • Published 1975
  • Computer Science
  • Human Factors: The Journal of Human Factors and Ergonomics Society
  • A few recent studies of open-book comprehension for printed instructions lead to the rule of thumb that such instructions will be understood correctly about two-thirds of the time. In the experiment reported here, two different flowchart formats were compared with standard paragraph instructions and were found to be superior in comprehension accuracy and speed. The two-thirds rule and the flowchart effect were both sustained in comprehension testing in a subsequent field trial. 
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