Comparison of the RSD measurements in FS (y-axis) and CS (x-axis) for the individual 1000 EZMOCKS of the eBOSS LRG sample. The top row displays the best-fit values for q_∥, q_⊥, and f, while the bottom row shows their estimated errors σ_q∥, σ_q⊥, and σ_f. The density of points is represented by grayscale shading, with dashed lines indicating the line of perfect correlation where the compared parameters are equal. We display the Pearson correlation coefficients between CS and FS. The plus symbol represents the results from the real eBOSS data, as listed in Table 6.