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Test Reliability—Basic Concepts

Test reliability Basic Concepts Samuel A. LivingstonJanuary 2018 Research Memorandum ETS RM 18-01 ETS Research Memorandum SeriesEIGNOR EXECUTIVE EDITORJ ames CarlsonPrincipal PsychometricianASSOCIATE EDITORSB eata Beigman KlebanovSenior Research ScientistHeather BuzickSenior Research ScientistBrent BridgemanDistinguished Presidential AppointeeKeelan EvaniniResearch DirectorMarna Golub-SmithPrincipal PsychometricianShelby HabermanDistinguished Research Scientist, EdusoftAnastassia LoukinaResearch ScientistJohn MazzeoDistinguished Presidential AppointeeDonald PowersPrincipal Research ScientistGautam PuhanPrincipal PsychometricianJohn SabatiniManaging Principal Research ScientistElizabeth StoneResearch ScientistRebecca ZwickDistinguished Presidential AppointeePRODUCTION EDITORSKim FryerManager, Editing ServicesAyleen GontzSenior EditorSince its 1947 founding, ETS has conducted and disseminated scientific research to support its products and services, and to advance the measurement and education fields.

Principal Psychometrician ASSOCIATE EDITORS. Beata Beigman Klebanov Senior Research Scientist. Heather Buzick Senior Research Scientist. Brent Bridgeman Distinguished Presidential Appointee. Keelan Evanini Research Director. Marna Golub-Smith Principal Psychometrician. Shelby Haberman Distinguished Research Scientist, Edusoft. Anastassia ...

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