Test Reliability—Basic Concepts
Test reliability Basic Concepts Samuel A. LivingstonJanuary 2018Research Memorandum ETS RM 18-01ETS Research Memorandum SeriesEIGNOR EXECUTIVE EDITORJames CarlsonPrincipal PsychometricianASSOCIATE EDITORSBeata 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.
Raters in those programs are trained to apply a single set of criteria and standards in rating the essays. Still, a test taker’s essay might be scored by a rater who especially likes that test taker’s ... S. A. Livingston Test Reliability—Basic Concepts. ...
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