Redshift-space reduced 3PCF, Q(θ), as a function of redshift (panels from top to bottom) for different luminosity (left plots) and stellar mass thresholds (right plots), for scales r₁₂ = 2.5h^-1 Mpc and r₁₃ = 5h^-1 Mpc . Blue and red lines show the measurements in the W1 and W4 fields, respectively, while the black lines show the combined 3PCF, with its associated errors. The grey shaded area shows the redshift-space 3PCF measured in two large Millennium mock catalogues, constructed to mimic the properties of VIPERS data, and is not representative of the expected scatter in the data.