Will reporting subscores provide any additional information than the total score? Is there a method that can be used to provide more trustworthy subscores than observed subscores? These 2 questions are addressed in this study. To answer the 2nd question, 2 subscore estimation methods (i.e., subscore estimated from the observed total score or…

The 11th International Conference on Educational Data Mining (EDM 2018) is held under the auspices of the International Educational Data Mining Society at the Templeton Landing in Buffalo, New York. This year's EDM conference was highly competitive, with 145 long and short paper submissions. Of these, 23 were accepted as full papers and 37…

Uses statistics from the Federal-State Cooperative System for Public Library Data to describe the distribution of librarians with master's degrees from graduate library education programs accredited by the American Library Association by size of population served and by state. Implications of these data are suggested, and discussion questions are…

A graphic procedure is presented for studying differential item functioning (DIF) that is designed to provide diagnostic information for psychometricians and educators. The procedure provides a signature of each test item that can be used with a summary statistic to flag items with DIF. Advantages and limitations are noted. (SLD)

The Tests of General Education Development (GED) enable about 450,000 adults each year to obtain high school equivalency certificates, representing about 15 percent of all the high school diplomas issued in the United States. This report presents statistics on the 1991 program and its participants. In 1991, 806,038 persons took the GED Tests, an…