Figure 5
The horizontal axis is labeled “Scenario” and has two category markings from left to right: “S 1: Human leading robot” and “S 2: Human following robot”. The vertical axis is labeled “Average pick time (seconds)” and ranges from 1.6 to 3.2 seconds in increments of 0.2 seconds. The graph shows two lines. The solid line with circular marker for “High” prevention regulatory focus starts at (S 1: Human leading robot, 1.7), rises slightly, and terminates at (S 2: Human following robot, 1.85). The dashed line with a triangular marker for “Low” prevention regulatory focus starts at (S 1: Human leading robot, 2.05), rises steeply, and terminates at (S 2: Human following robot, 3.08). Two vertical difference annotations are shown. The vertical gap between the start and end points of the low prevention is labeled “delta equals 1.03 asterisk”. The vertical gap between the end points of the high and low prevention is labeled “delta equals 1.23 asterisk”. Note: All numerical data values are approximated.Two-way interaction plot between human leading vs human following scenarios and prevention focus, predicting human pick time on the same aisle, different stopping node. *significant difference in post-hoc test p < 0.05