Amon, AlexandraBlake, ChrisHeymans, CatherineLeonard, C DAsgari, MBilicki, Maciej IejChoi, AErben, TGlazebrook, KarlHarnois-Deraps, JoachimHildebrandt, HWolf, Christian2021-11-092021-11-090035-8711http://hdl.handle.net/1885/251695We present a new measurement of EG, which combines measurements of weak gravitational lensing, galaxy clustering, and redshift-space distortions. This statistic was proposed as a consistency test of General Relativity (GR) that is insensitive to linear, deterministic galaxy bias, and the matter clustering amplitude. We combine deep imaging data from KiDS with overlapping spectroscopy from 2dFLenS, BOSS DR12, and GAMA and find EG (z=0.267) = 0.43 ± 0.13(GAMA), EG (z=0.305) = 0.27 ± 0.08 (LOWZ+2dFLOZ), and EG (z=0.0554) = 0.26 ± 0.07 (CMASS + 2dFHIZ). We demonstrate that the existing tension in the value of the matter density parameter hinders the robustness of this statistic as solely a test of GR. We find that our EG measurements, as well as existing ones in the literature, favour a lower matter density cosmology than the cosmic microwave background. For a flat ΔCDM Universe, we find Ωm(z = 0) = 0.25 ± 0.03. With this paper, we publicly release the 2dFLenS data set at: http://2dflens.swin.edu.au.AA, CH, MA, and SJ acknowledge support from the European Research Council under grant numbers 647112 (CH and MA) and 693024 (SJ). CB acknowledges the support of the Australian Research Council through the award of a Future Fellowship. DL acknowledges support from the McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University. HHi acknowledges support from an Emmy Noether grant (No. Hi 1495/2-1) of the Deutsche Forschungsgemeinschaft. HHo acknowledges support from Vici grant 639.043.512, financed by the Netherlands Organisation for Scientific Research (NWO). BJ acknowledges support by an STFC Ernest Rutherford Fellowship, grant reference ST/J004421/1. JHD acknowledges support from the EuropeansCommission under a Marie-Sklodwoska-Curie European Fellowship (EU project 656869). SJ also acknowledges support from the Beecroft Trust. DP acknowledges the support of the Australian Research Council through the award of a Future Fellowship. MB is supported by the Netherlands Organisation for Scientific Research, NWO, through grant number 614.001.451application/pdfen-AU© 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Societygravitational lensing: weaksurveys, cosmology: observations, large-scale structure of Universe201810.1093/mnras/sty16242020-11-23