The purpose of this study was to identify the major science education programs in the United States, where the science education researchers published their research during the first decade of the twenty-first century. This research study of the scholarly productivity of science education programs at United States' institutions of higher education is compared with the last decade of 1990s (Barrow, Settlage, & Germann, 2008)
. Each issue of the eight research journals (Journal of Research is Science Teaching, Science Education, International Journal of Science Education, Journal of Science Teacher Education, School Science and Mathematics, Journal of Computers in Math and Science Teaching, Journal of Science Education and Technology, and Journal of Elementary Science Education) published in the 2000sprovided the author(s) and their institutional affiliation. The resultant ranking of raw and weighted counts for the top 30 U.S science educations programs shows variation in journals where research was published. There were almost 50% of the 2000s top 30 institutions which were not listed for the 1990s. Potential explanations for variations and uses for ranking are discussed.