Test of the different constructions of the covariance matrix. The result shows constraint on a subset of the cosmological, HOD, and assembly bias parameters using w _p + ξ ₀ + ξ ₂ for the high-z (z ∼ 0.55) subsample. The consistency of these results demonstrates that the construction of the covariance matrix for sample variance does not have a significant impact on the cosmological inference.