This technical brief describes the large-scale assessment measures and practices used in the jurisdictions served by the Pacific Regional Educational Laboratory. The need for effective large-scale assessment was identified as a major priority for improving student achievement in the Pacific Region jurisdictions: American Samoa, Guam, Hawaii, the Republic of the Marshall Islands, the Federated States of Micronesia (Chuuk, Kosrae, Pohnpei, and Yap), the Commonwealth of the Northern Mariana Islands, and the Republic of Palau (National Education Association 2007; Pacific Regional Advisory Committee 2005; South Pacific Board for Educational Assessment 2008). These needs assessment efforts made it clear that educators want information related to the adoption, development, and revision of large-scale assessments for use with the culturally and linguistically diverse students in the Pacific Region jurisdictions. To provide timely information about large-scale assessment across the Pacific Region, the study identifies for each jurisdiction: (1) currently used large-scale assessment measures; (2) whether the measures are norm- or criterion-referenced; (3) content areas assessed; (4) languages used in the assessments; (5) grade levels at which tests are administered; (6) frequency of test administration; and (7) when the tests are administered during the school year. Analyses indicate that all the jurisdictions implement large-scale assessments, using a variety of assessment measures and practices. The majority of the large-scale assessments are specific to the jurisdiction in which they are implemented, criterion-referenced, in English, and administered annually. (Contains 10 tables and 1 note.) [This REL Technical Brief was prepared for the Institute of Education Sciences (IES) by Regional Educational Laboratory Pacific administered by Pacific Resources for Education and Learning.]