Figure 5
The horizontal axis lists seven categories labeled from left to right as follows: “Case Study”, “Conceptual”, “Survey”, “Review”, “Experiment”, “Mixed”, and “Modeling”. The vertical axis ranges from 0 to 180 in increments of 20 units. The data for the bars is as follows: Case Study: 10. Conceptual: 11. Survey: 11. Review: 15. Experiment: 19. Mixed: 79. Modeling: 162. Note: All numerical data values are approximated.Distribution of articles by research methods