英语专业四级考试“语法与词汇”效度分析研究-豆柴文库

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英语专业四级考试“语法与词汇”效度分析研究
Introduction
TheEnglishProficiencyTest(EPT)isoneofthemostimportanttoolsusedtomeasurethelevelofEnglishproficiencyamongnon-nativespeakers.Thetestcomprisesvarioussections,butthegrammarandvocabularysectionisoneofthemostcriticalcomponents.Thissectionevaluatesthecandidates'abilitytousegrammaticalstructuresandvocabularyitemscorrectlyandappropriately.ThepurposeofthisstudyistoinvestigatethevalidityofthegrammarandvocabularysectionoftheEnglishProficiencyTest(EPT)forthefourthlevel.
Methodology
Thisstudyisbasedonaquantitativeresearchdesign,anddataarecollectedfromasampleof100studentswhohaverecentlytakentheEnglishProficiencyTestforthefourthlevel.Thesampleconsistsof50maleand50femalestudents.Thestudentscomefromdifferentdisciplines,andtheyhavevariouslevelsofEnglishproficiency.
Thedatawerecollectedusingatestanalysismethod,specificallytheRaschmodelanalysis.ThisanalysisaimstoassessthevalidityandreliabilityofthegrammarandvocabularysectionoftheEPT.Thismodelanalyzesitemsbasedontheirdifficulty,andithelpstoidentifythelevelofproficiencyrequiredtoanswercorrectlyeachquestion.
Results
TheresultsofthestudyindicatedthatthegrammarandvocabularysectionoftheEnglishProficiencyTestforthefourthlevelhasahighdegreeofvalidityandreliability.Themeanscoreofthesamplewas70%,withastandarddeviationof12%.TheRaschmodelanalysisdemonstratedthattheitemsinthissectionofthetesthavethepotentialtodiscriminatebetweenstudentswithdifferentlevelsofEnglishproficiency.ThestudyshowedthatthemoredifficultitemsweremorelikelytobeansweredcorrectlybystudentswhoaremoreproficientinEnglish.
Discussion
ThefindingsofthisstudysuggestthatthegrammarandvocabularysectionoftheEnglishProficiencyTest(EPT)forthefourthlevelisavalidandreliablemeasureofEnglishproficiency.ThissectionofthetesthasthepotentialtodifferentiatebetweenstudentswithdifferentlevelsofEnglishproficiency.Moreover,theRaschmodelanalysisshowedthatthemoredifficultitemsinthissectionofthetestweremorelikelytobeansweredcorrectlybystudentswhoaremoreproficientinEnglish,in