The Language Assessment Diffusion Organization (L.A.D.O.) is an organization for TESOL M.A and ALT PhD graduate students at Iowa State University (ISU) who are interested in the diffusion of knowledge and expertise in the area of language assessment and language testing. Language assessment and testing is a sub-discipline currently studied within the Applied Linguistics graduate program at ISU and requires knowledge of several fields, such as education, applied linguistics and statistics. The L.A.D.O organization will hopefully make I.S.U. an even stronger reference in the area. The organization aims at providing a forum for the discussion and analysis of current and relevant issues in the field of language assessment and also a forum though which its members can learn more about specific language-assessment subfields, tools and skills of interest to them, especially those that are currently either not available or not easily acquired at ISU. Knowledge of such subfields, tools and skills will be acquired both by means of interaction/discussion among the members of the L.A.D.O. organization during the meetings held and by means of inviting other I.S.U PhD students or scholars/experts outside of I.S.U to give language-assessment-relevant talks to L.A.D.O. members or to offer practical workshops to the members of the L.A.D.O organization.