Figure 2
The figure shows two horizontally arranged line plots, each with shaded confidence intervals. The details of the graphs are as follows: The graph on the left is labeled “(a)” and has the heading “Predictive Margins with 90 percent C Is.” The vertical axis is labeled “Change in Accident Rate (Positive equals Fewer Accidents),” and ranges from negative 5 to 5 in increments of 5. The horizontal axis is labeled “Changes in O H S managers managing O H S since 2014,” and ranges from negative 0.13 to 0.12, in increments of 0.05. Two lines are shown on the graph. A legend at the bottom indicates that the solid line represents “Small establishment,” and the dashed line represents “Large establishment.” The line for “Small establishment” starts at (negative 0.13, negative 1.04), increases with a positive slope, and ends at (0.12, 5.33). The for “Large establishment” starts at (negative 0.13, negative 2.99), increases with a positive slope, and ends at (0.12, 3.26). The graph area shows two light-colored shaded areas and two dark-colored shaded areas. The dark-colored area on the left forms a triangle with the vertices at (negative 0.13, negative 0.098), (negative 0.13, negative 3.52), and (negative 0.007, 1.14). The dark-colored area on the right forms a triangle with the vertices at (0.034, 2.02), (0.12, 5.33), and (0.12, 3.03). The light-colored area on the top lies between (negative 0.13, 1.73), (negative 0.13, negative 0.098), (0.12, 7.81), and (0.12, 5.33). The light-colored area at the bottom lies between (negative 0.13, negative 3.52), (negative 0.13, negative 5.94), (0.12, 3.03), (0.12, 1.37). The graph on the right is labeled “(b)” and has the heading “Predictive Margins with 90 percent C Is.” The vertical axis is labeled “Change in Accident Rate (Positive equals Fewer Accidents),” and ranges from negative 2 to 6 in increments of 2. The horizontal axis is labeled “Changes in Emp. Reps. managing O H S since 2014,” and ranges from negative 0.13 to 0.07, in increments of 0.05. Two lines are shown on the graph. A legend at the bottom indicates that the solid line represents “Small establishment,” and the dashed line represents “Large establishment.” The line for “Small establishment” starts at (negative 0.13, 3.55), decreases with a negative slope, and ends at (0.07, 1.86). The line for “Large establishment” starts at (negative 0.13, 1.52), decreases with a negative slope, and ends at (0.07, negative 0.203). The graph area shows two light-colored shaded areas and two dark-colored shaded areas. The dark-colored area on the left forms a triangle with the vertices at (negative 0.13, 0.47), (negative 0.13, 4.91), and (negative 0.038, 1.86). The dark-colored area on the right forms a triangle with the vertices at (0.003, 1.32), (0.07, 2.20), and (0.07, negative 0.81). The light-colored area on the top lies between (negative 0.13, 4.91), (0.13, 6.67), (0.07, 4.47), and (0.07, 2.20). The light-colored area at the bottom lies between (negative 0.13, 0.47), (0.13, negative 1.83), (0.07, negative 0.81), and (0.048, negative 1.96).Marginal plots – Moderation results of establishment size on the relationship between (a) changes in OHS officers managing OHS and accident reduction, and (b) changes in employee representative managing OHS and accident reduction. Note: Low and high x-values are based on ± 1 standard deviations of the mean in the sample. The shaded areas represent the 90% confidence intervals. Source: Authors’ own creation