Opening Organizational Archives to Research: Analog Measures of Organizational Commitment Trueman R. Tremble, Jr. U.S. Army Research Institute for the Behavioral and Social Sciences Stephanie C. Payne and John F. Finch Texas A&M University R. Craig Bullis United States Military Academy This research applied the construct equivalence approach for deriving and empiri- cally validating analog measures based on data not originally designed to measure the theoretical constructs of interest. In this application, subject matter experts agreed on questionnaire items from a longitudinal database that fit Meyer and Allen’s (1991) definitions of affective and continuance commitment. Questionnaires suitable for inclusion of these items and the original Meyer and Allen (1984) items were ad- ministered to a test sample of Army officers (N = 404). Analyses supported use of the selected items as analog scales of affective and continuance commitment in that both the selected and original items yielded similar factor structures and similar relations with officer rank and career intentions. Results for the analog items were replicated with another officer sample (N = 863). The contributions of the findings to the organi- zational commitment literature and research in the military are discussed. The Army has a need to develop and maintain a force of soldiers for military ser- vice who are highly motivated and capable. This need is partly derived from the unique conditions of military service, which can involve a life requiring travel (in- cluding deployments away from family members), frequent relocation as well as MILITARY PSYCHOLOGY, 2003, 15(3), 167–190 Requests for reprints should be sent to Trueman R. Tremble, Jr., U. S. Army Research Institute for the Behavioral and Social Sciences, ATTN: TAPC-ARI-RS, 5001 Eisenhower Avenue, Alexandria, Virginia 22333-5600. E-mail may be sent to: tremble@ari.army.mil.