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Download full textGriffith, David – Thomas B. Fordham Institute, 2017
Research confirms what common sense dictates: Students learn less when their teachers aren't there. According to multiple studies, a ten-day increase in teacher absence results in at least ten fewer days of learning for students. Clearly, some absences are unavoidable--teachers are only human. But compared to their counterparts in other industries…
Descriptors: Employee Absenteeism, Charter Schools, Public Schools, Teacher Attendance
Hickey, Thomas B. – 1981
The statistics that are presented are based on a one percent systematic sample of the OCLC online union catalog as of January 1980. Detailed data were collected on the use of fields, subfields, indicators in bibliographic records, and on the co-occurrence of fields within bibliographic records. The sample used for the study was obtained by…
Descriptors: Data Analysis, Databases, Online Systems, Statistics
Olson, Paul E.; Pletzke, Chester J. – 1975
A cost-benefit analysis of the 43-library, 260,000-title Midwest Medical Union Catalog (MMUC) of books, conducted from June, 1973, through May, 1975, under a grant from the National Library of Medicine, studied the 49-year-old catalog in the context of the interlibrary loan activity of the Midwest Health Science Library Network. The study tested…
Descriptors: Cost Effectiveness, Databases, Information Dissemination, Interlibrary Loans
