On the basis of a step-by-step procedure (see T. R. Hinkin, 1998), the authors discuss the design and evaluation of a self-report battery (Organizational Change Questionnaire-Climate of Change, Processes, and Readiness; OCQ-C, P, R) that researchers can use to gauge the internal context or climate of change, the process factors of change, and readiness for change. The authors describe 4 studies used to develop a psychometrically sound 42-item assessment tool that researchers can administer in organizational settings. More than 3,000 organizational members from public and private sector organizations participated in the validation procedure of the OCQ-C, P, R. The information obtained from the analyses yielded 5 climate-of-change dimensions, 3 process-of-change dimensions, and 3 readiness-for-change dimensions.