highly significantp < 0.05
As indicated in Table 4 , the regression coefficients at the sample level, measurement level, literature level, and variable level were all positive, and the results are highly significant ( p < 0.05).
As indicated in Table 4 , the regression coefficients at the sample level, measurement level, literature level, and variable level were all positive, and the results are highly significant ( p < 0.05).