The expansion of The West African Examination Council's (WAEC) Test Development and Research Office (TEDRO), from January 1969 through August 1973, is described. The development of TEDRO as an institution was of primary importance; the continuation of test development and educational services was the other major goal during this period of time. TEDRO serves the member countries of the WAEC--Nigeria, Ghana, Sierra Leone, and the Gambia--by developing and administering objective testing programs related to aptitude for various occupations and school entrance. TEDRO also conducts research on the validity of their tests, and trains educators in test construction and research techniques. Improvements include the establishment of branch offices in Accra, Ghana and Freetown, Sierra Leone, additions and changes in staffing, additional staff training, association with professionals in other countries, development of a library, and increasing use of data processing equipment. Abstracts of 63 research reports issued by TEDRO during this project are appended. (GDC)