[en] Differential cross sections and analyzing powers have been measured for the ¹⁵N(p,n)¹⁵ O(g.s.) reaction at bombarding energies of 200 MeV and 494 MeV. The 494 MeV data were obtained at the LAMPF Neutron Time-Of-Flight Facility on an 82 m flight path with a resolution of about 2.7 MeV. The 200 MeV data were obtained at IUCF on a 76m flight path with a resolution of about 1.1 MeV. At both energies, the measured analyzing power is small, the magnitude is less than .2 for momentum transfers of less than 1 fm^-1. In contrast, both Relativistic and standard DWIA calculations predict a maximum of A=-.7 near q=0.7 fm^-1. 53 refs., 44 figs