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We visually and quantitatively determine the host galaxy morphologies of 94intermediate redshift (0.2 < z < 1.2) active galactic nuclei (AGN), selectedusing Chandra X-ray and Spitzer mid-infrared data in the Extended Groth Strip.Using recently developed morphology measures, the second-order moment of thebrightest 20% of a galaxy's flux (M_{20}) and the Gini coefficient, we findthat X-ray-selected AGN mostly reside in E/S0/Sa galaxies (53^{+11}_{-10}%),while IR-selected AGN show no clear preference for host morphology.X-ray-selected AGN hosts are members of close pairs more often than the fieldpopulation by a factor of 3.3+/-1.4, but most of these pair members appear tobe undisturbed early-type galaxies and do not tend to show direct evidence ofgravitational perturbations or interactions. Thus, the activation mechanism forAGN activity remains unknown, even for pair members.Comment: 11 pages, 2 figures, 1 table, accepted for publication in ApJ

AEGIS: Host Galaxy Morphologies of X-Ray-selected and Infrared-selected Active Galactic Nuclei at 0.2 ≤ z < 1.2