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Testing a Test: Evaluating Our Assessment Tools

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This slideshow was used for teacher training workshops I conducted in the fall of 2011 at the Center for English as a Second Language, University of Arizona (Tucson, USA).
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‘Tes%ng a test’ – Evalua%ng our Assessment Tools Eddy White, Ph.D. Assessment Coordinator Center for English as a Second Language University of Arizona
Transcript
Page 1: Testing a Test: Evaluating Our Assessment Tools

‘Tes%ngatest’–Evalua%ngourAssessmentTools

EddyWhite,Ph.D.

AssessmentCoordinator

CenterforEnglishasaSecondLanguage

UniversityofArizona

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1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

2

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1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

3

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(1994‐2009)

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Classroom-based Assessment

•  AssessmentofLearning

•  AssessmentforLearning

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1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

8

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Thegoalofassessmentisto...

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The goal of assessment has to be, above all, to support the improvement of

learning and teaching.

(Fredrickson&Collins,1989)

10

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definiGon:ClassroomAssessment

Assessment

Planning

CollecGng

Analyzing

ReporGng

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ESLAssessment‐Purposes•  idenGfystrengthsandweaknessesofindividualstudents,

•  adjustinstrucGontobuildonstudents’strengthsandalleviateweaknesses,

•  monitortheeffecGvenessofinstrucGon,•  providefeedbacktostudents(sponsors,parents,etc.),and

•  makedecisionsabouttheadvancementofstudentstothenextleveloftheprogram.

12(Source:ESLSeniorHighGuidetoImplementaGon,2002)

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Consider •  Researchsuggeststhatteachersspendfromone‐quartertoone‐thirdoftheirprofessionalGmeonassessment‐relatedacGviGes.

•  Almostalldosowithoutthebenefitofhavinglearnedtheprinciplesofsoundassessment.

(S%ggins,2007)

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Teacherslearnhowtoteachwithoutlearningmuchabouthowtoassess.(Heritage,2007)

14

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Assessmentliteracy

•  thekindsofassessmentknow‐howandunderstandingthatteachersneedtoassesstheirstudentseffecGvely

•  AssessmentliterateeducatorsshouldhaveknowledgeandskillsrelatedtothebasicprinciplesofqualityassessmentpracGces

(SERVECenter,UniversityofNorthCarolina,2004)

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AssessmentLiteracy

Know‐howandunderstandingteachersneedtoassessstudentseffec%velyand

maximizelearning

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•  Wemaynotlikeit,butstudentscananddoignoreourteaching;

•  howeveriftheywanttogetaqualificaGon,theyhavetoparGcipateintheassessmentprocesseswedesignandimplement.

(Brown,S.2004.Assessmentforlearning.LearningandTeachinginHigherEduca0on,1,81‐89)

Importanceofclassroomassessment

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43/W

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Whoaretheassessment‘deciders’atyour

insGtuGon?

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Classroom-Based Assessment: Challenges, Choices, and Consequences

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AssessmentFrameworks

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Assessmentframework

•  ‐theseriesofassessmenttools(exams,tasks,projects,etc.)thatarescoredandusedtoarriveatasumma%vegradeforacourse

•  ‐itshouldbeskills‐basedandknowledge‐based(i.e.SsdemonstratewhattheyknowaboutandcandowithEnglish)

•  basedonlearningoutcomes

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(Rowntree,1987)

• Thespiritandstyleofstudentassessmentdefinesthedefactocurriculum.

defacto=exisGnginfact,actual,whetherintendedornot

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1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

25

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QuizGme!

26

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AssessinganEnglisharGclesquiz

Context

• ConversaGonclass(listening&speaking)

• high‐beginnerlevel27

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Whatisafundamentalproblemwiththisquiz?

28

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Answer

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1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

30

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Whatisatest?

31

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Atest...•  isamethodofmeasuringaperson’sability,knowledge,orperformanceinagivendomain.

•  isaninstrument–asetoftechniques,procedures,oritems–thatrequiresperformanceonthepartofthetest‐taker.

32

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Tests–measuringfunc%on

33

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Atestmustmeasure•  Sometestsmeasuregeneralability,whileothersfocusonveryspecificcompetenciesorobjecGves.

•  Examples

•  AmulG‐skillproficiencytestmeasuresgeneralability;

•  aquizonrecognizingcorrectuseofdefinitearGclesmeasuresveryspecificknowledge.

34

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•  Atestmeasuresperformance,...

• but,theresultsimplythetest‐takersability,orcompetence.

35

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•  Performance‐basedtestssamplethetest‐takersactualuseoflanguage,

•  butfromthosesamplesthetestadministratorinfersgeneralcompetence.

36

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•  Awell‐constructedtestisaninstrumentthatprovidesanaccuratemeasureofatest‐taker’sabilitywithinaparGculardomain.

•  Construc%ngagoodtestisacomplextask.

37

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Yourassessmentprac%ces?

38

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Thinkaboutwhatis

happeninginyourcontextandyour

assessmentpracGces

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•  Inventories•  Checklists•  PeerRaGng•  SelfRaGng•  Journals•  Porkolios•  ObservaGons•  Discussions•  Interviews

•  True–FalseItem•  MulGpleChoice•  CompleGon•  ShortAnswer•  Essay•  PracGcalExam•  Papers/Reports•  Projects•  QuesGonnaires•  PresentaGons

YourassessmentpracGces?

Howdoyouassessyourstudents?

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Foryou,whichofthefourskillsaremore/lesschallengingtotest?

41

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1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

42

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QuizGme!

43

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2010

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•  Exploringhowprinciplesoflanguageassessmentcanandshouldbeappliedtoformaltests.

•  Theseprinciplesapplytoassessmentofallkinds.

•  Howtousetheseprinciplestodesignagoodtest.

45

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• Whatarethe‘fivecardinalcriteria’thatcanbeusedtodesignandevaluatealltypesofassessment?

46

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Q.HowdoyouknowifatestiseffecGve,appropriate,useful,or,indown‐to‐earth

terms,a“good”test?

47

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Fivekeyassessmentprinciples?

• Discuss• 3minutes

• Hint(fivenouns)48

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Fivekeyassessmentprinciples

• PracGcality• Reliability• Validity• AuthenGcity• Washback

49

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KeyAssessmentPrinciples

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•  ThesequesGonsprovideanexcellentcriteriontoevaluatethetestswedesignanduse.

52

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53

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1.PracGcality

54

• IstheprocedurerelaGvelyeasytoadminister?

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Prac%calityconsidera%ons

•  thelogisGcalandadministraGveissuesinvolvedinmaking,givingandscoringanassessmentinstrument

•  theamountofGmeittakestoconstructandadminister

•  theeaseofscoring•  easeofinterpreGng/reporGngtheresults

55

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AneffecGvetestisprac%cal.

Thismeansthatit:•  isnotexcessivelyexpensive•  stayswithinappropriateGmeconstraints

•  isrelaGvelyeasytoadminister,and

•  hasascoring/evaluaGonprocedurethatisspecificandGmeefficient

56

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ThevalueandqualityofatestsomeGmeshingeonsuchni`y‐gri`yprac%cal

considera%ons.

57

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•  InclassroombasedtesGng,_________isalmostalwaysacrucialpracGcalfactorforbusyteachers.

58

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2.Reliability

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• Is all work being consistently marked to the

same standard?

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• Areliabletestisconsistentanddependable.

•  Ifyougivethesametesttothesamestudentormatchedstudentsontwodifferentoccasions,thetestshouldyieldsimilarresults.

61

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Whatfactors

contributetothe

unreliabilityofatest?

62

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TestUnreliability‐contribuGngfactors

• Studentrelatedreliability• Raterreliability(inter,intra)• Testadministra%onreliability

• Testreliability63

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Q.Whatisonekeywaytoincreasereliability?

A.Userubrics

64

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• Rubricsarescoringguidelines.•  Theyprovideawaytomakejudgmentsfairandsoundwhenassessingperformance.

•  Auniformsetofpreciselydefinedcriteriaorguidelinesaresetforthtojudgestudentwork.

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3.Validity

‐ mostcomplexcriteria

‐ mostimportantprinciple

• Does the assessment

measure what we

really want to

measure?

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Validity‐definiGon

•  ‘Theextendtowhichinferencesmadefromassessmentresults

areappropriate,meaningful,andusefulintermsofthepurposeof

theassessment.’

(Gronlund,1998,p.226)68

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•  Avalidtestofreadingability...

•  actuallymeasuresreadingability–

•  notmathskills

•  orpreviousknowledgeinasubject

•  norwriGngskills•  norsomeothervariableofquesGonablerelevance

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Howisthevalidityofatestestablished?

1. Contentvalidity

2. Facevalidity

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Contentvalidity•  Ifatestrequiresthetest‐takertoperformthebehaviorthatisbeingmeasured...

•  itcanclaimcontent‐relatedevidenceofvalidity(contentvalidity)

•  e.g.Atestofaperson’sabilitytospeakanL2requiresthestudenttoactuallyspeakwithinsomesortofauthenGccontext.

•  AtestwithpaperandpencilmulGplechoicequesGonsrequiringgrammaGcaljudgmentsdoesnotachievecontentvalidity.

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AnotherwayofunderstandingcontentvalidityistoconsiderthedifferencebetweendirectandindirecttesGng.

•  directtes%ng–involvesthetest‐takerinactuallyperformingthetargettask

•  indirecttes%ng‐studentsnotperformingthetaskitself,butarelatedtask.

•  e.g.tes%ngoralproduc%onofsyllablestress

72

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Toachievecontentvalidityin

classroomassessment,trytotestperformance

directly.

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Howisthevalidityofatestestablished?

1. Contentvalidity

2. Facevalidity

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Facevalidity

•  Theextenttowhichstudentsviewtheassessmentas:

1.  fair2.  relevant3.  usefulforimprovinglearning

•  Facevalidityreferstothedegreetowhichatestlooksright,andappearstomeasuretheknowledgeorabiliGesitclaimstomeasure.

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Highfacevalidity:thetest...•  iswell‐constructed,expectedformatwithfamiliartasks

•  isclearlydoablewithinallouedGme•  hasitemsthatareclearanduncomplicated•  direcGonsthatarecrystalclear•  hastasksrelatedtocoursework(contentvalidity)

•  hasadifficultylevelthatpresentsareasonablechallenge

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• Mostsignificantcardinalprincipleofassessmentevalua%on.

•  Ifvalidityisnotestablished,allotherconsideraGonsmayberendereduseless.

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4.AuthenGcity

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• Arestudentsaskedtoperformreal‐worldtasks?

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Testtaskauthen%city

• tasksrepresent,orcloselyapproximate,real‐worldtasks

• thetaskislikelytobeenactedinthe“realworld”

• notcontrivedorarGficial81

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AuthenGcitychecklist•  Isthelanguageinthetestasnaturalaspossible?

•  Aretopicsascontextualizedaspossibleratherthanisolated?

•  AretopicsandsituaGonsinteresGngenjoyable,and/orhumorous?

•  IssomethemaGcorganizaGonprovided,suchasthroughastorylineorepisode?

•  Dotasksrepresent,orcloselyapproximate,real‐worldtasks?

82

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5.Washback

84

• Does the assessment have positive effects on learning

and teaching?

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Washback=theeffectoftesGngonteaching

andlearning

85

‐ posi%vewashback‐ nega%vewashback

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Washback•  Classroomassessment:theaffectsofanassessmentonteachingandlearningpriortotheassessmentitself(preparaGon)

•  Anotherformofwashback=theinformaGonthat‘washesback’tostudentsintheformofusefuldiagnosesofstrengthsandweaknesses.

•  Formaltestsprovidenowashbackifstudentsreceiveasimpleleuergradeorsingleoverallnumericalscore.

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Atestthatprovidesbeneficialwashback...

•  posiGvelyinfluenceswhatandhowteachersteach

•  posiGvelyinfluenceswhatandhowstudentslearn

•  offerslearnersachancetoadequatelyprepare•  giveslearnersfeedbackthatenhancestheirlanguagedevelopment

•  providescondiGonsforpeakperformancebythelearner

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Teachers’challenge

• tocreateclassroomteststhatserveaslearningtoolsthroughwhichwashbackis

achieved

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1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

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Q.HowdoyouknowifatestiseffecGve,appropriate,useful,or,indown‐to‐earthterms,a“good”

test?

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Answer.A‘good’test:•  canbegivenwithinappropriateadministraGveconstraints,

•  isdependable,•  accuratelymeasureswhatyouwantittomeasure,

•  thelanguageinthetestisrepresentaGveofreal‐worldlanguageuse,and

•  thetestprovidesinformaGonthatisusefulforthelearner.

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•  TheseprincipleswillhelpyoumakeaccuratejudgmentsabouttheEnglishcompetenceofyourstudents.

•  TheyprovideusefulguidelinesforevaluaGngexisGngtests,anddesigningourown.

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AssessmentLiteracy

Know‐howandunderstandingteachersneedtoassessstudentseffec%velyand

maximizelearning

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•  Thereisnogewngawayfromthefactthatmostofthethingsthatgowrongwithassessmentareourfault,

•  theresultofpoorassessmentdesign‐andnotthefaultofourstudents.

(Raceetal.,2005)

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•  Improvingstudentlearningimpliesimprovingtheassessmentsystem.

•  Teachersoxenassumethatitistheirteachingthatdirectsstudentlearning.

•  InpracGce,assessmentdirectsstudentlearning,becauseitistheassessmentsystemthatdefineswhatisworthlearning.

(Havnes,2004,p.1)

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•  ThereissubstanGalevidencethatassessment,ratherthanteaching,hasthemajorinfluenceonstudents’learning.

•  ItdirectsauenGontowhatisimportant,actsasanincenGveforstudy,andhasapowerfuleffectonstudent’sapproachestotheirwork.

(Boud&Falchikov,2007)

RethinkingAssessmentinHigherEduca0on

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“We owe it to ourselves and our students to devote at least as much energy to ensuring that our assessment practices are worthwhile as we do to ensuring that we teach well”.

Dr.DavidBoud,UniversityofTechnology,Sydney,Australia

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ThankyouforyourGmeandparGcipaGon


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