Factor-analytic structures in the English and Japanese versions of the Objective Measure of Ego-Identity Status (OMEIS)

This research describes an exploratory factor analysis for the purposes of factorial validation for both the English and Japanese versions of the Obje ctive Measure of Ego-Identity Status (OMEIS)-Ideological version (Adams, Be nnion, & Huh, 1989). The Japanese OMEIS is a direct translation of the Engl ish OMEIS (Ohnishi, 1998). The study reports the factor structure of the OM EIS-Ideological version in English and Japanese. A principal factor analysi s (PFA) with both oblique and orthogonal solutions was performed. Alpha rel iabilities for the factors are presented. The present research compares and contrasts the factor structures of OMEIS-Ideological version, derived from a U.S. sample and a Japanese sample, comprising women from late adulthood to middle age. Cultural differences between the two sample populations are explored.