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1、TestdiscriminationandtestconstructionforcognitivediagnosisUS8348674B2摘要Amethod,systemandcomputer-readablecarrierforusingadiscriminationindextoselecttestitemsfromanitembankforatestaredisclosed.Atleastoneparametermaybeidentifiedforeachofapluralityoftestitemsinanitembank.Afirsttestite
2、mmaybeselectedfromtheitembankbasedonatleasttheparameterforthetestitem.Eachunselectedtestitemmaybeevaluatedtodeterminewhetheroneormoreconstraintswouldbesatisfiedifthetestitemwereselected.Anexttestitemmaybeselectedfromtheunselectedtestitemsthatsatisfytheoneormorefirstconstraintsbased
3、onatleasttheparameterforeachtestitem.TheEvaluationandtestitemselectionprocessesmayberepeateduntiloneormoresecondconstraintsaresatisfied.图片(4)说明CROSS-REFERENCETORELATEDAPPLICATIONSThispatentapplicationclaimspriorityto,andincorporatesbyreferenceinitsentirety,U.S.ProvisionalPatentAppl
4、icationNo.60/600,899,entitled“TestDiscriminationandTestConstructionforCognitiveDiagnosis”andfiledAug.12,2004BACKGROUNDStandardizedtestingisprevalentintheUnitedStatestoday.Suchtestingisoftenusedforhighereducationentranceexaminationsandachievementtestingattheprimaryandsecondaryschool
5、levels.TheprevalenceofstandardizedtestingintheUnitedStateshasbeenfurtherbolsteredbytheNoChildLeftBehindActof2001,whichemphasizesnationwidetest-basedassessmenttomeasurestudents'abilitiestoensureappropriategradeplacementandqualityofeducation.However,unlikemeasurementsthataremadeinthe
6、physicalworld,suchaslengthandweight,measuringstudents'skills,knowledgeandattributesthatcannotbedirectlyobservedischallenging.Insteadofmeasuringaparticularskill,knowledgeorattributedirectly,thestudentmustbemeasuredbasedonasetofobservableresponsesthatareindicatorsoftheskill,knowledge
7、orattribute.Forexample,ifanexaminerwantedtomeasureextraversion,itisnotobviouswhattool,orquestionnaire,wouldbeeffective.Eveniftheexaminerhadanappropriatequestionnaire,changesinrepeatedmeasurementsofanindividual'sextraversioncouldbeduetochangesinboththeconstructandtheerrorofmeasureme
8、nt.ClassicalTestTheory(CTT
