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).

Transcript of Testing a Test: Evaluating Our Assessment Tools

‘Tes%ngatest’–Evalua%ngourAssessmentTools

EddyWhite,Ph.D.

AssessmentCoordinator

CenterforEnglishasaSecondLanguage

UniversityofArizona

1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

2

1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

3

(1994‐2009)

Classroom-based Assessment

•  AssessmentofLearning

•  AssessmentforLearning

1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

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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)

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definiGon:ClassroomAssessment

Assessment

Planning

CollecGng

Analyzing

ReporGng

ESLAssessment‐Purposes•  idenGfystrengthsandweaknessesofindividualstudents,

•  adjustinstrucGontobuildonstudents’strengthsandalleviateweaknesses,

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

•  makedecisionsabouttheadvancementofstudentstothenextleveloftheprogram.

12(Source:ESLSeniorHighGuidetoImplementaGon,2002)

Consider •  Researchsuggeststhatteachersspendfromone‐quartertoone‐thirdoftheirprofessionalGmeonassessment‐relatedacGviGes.

•  Almostalldosowithoutthebenefitofhavinglearnedtheprinciplesofsoundassessment.

(S%ggins,2007)

Teacherslearnhowtoteachwithoutlearningmuchabouthowtoassess.(Heritage,2007)

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Assessmentliteracy

•  thekindsofassessmentknow‐howandunderstandingthatteachersneedtoassesstheirstudentseffecGvely

•  AssessmentliterateeducatorsshouldhaveknowledgeandskillsrelatedtothebasicprinciplesofqualityassessmentpracGces

(SERVECenter,UniversityofNorthCarolina,2004)

AssessmentLiteracy

Know‐howandunderstandingteachersneedtoassessstudentseffec%velyand

maximizelearning

•  Wemaynotlikeit,butstudentscananddoignoreourteaching;

•  howeveriftheywanttogetaqualificaGon,theyhavetoparGcipateintheassessmentprocesseswedesignandimplement.

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

Importanceofclassroomassessment

43/W

Whoaretheassessment‘deciders’atyour

insGtuGon?

Classroom-Based Assessment: Challenges, Choices, and Consequences

AssessmentFrameworks

Assessmentframework

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

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

•  basedonlearningoutcomes

(Rowntree,1987)

• Thespiritandstyleofstudentassessmentdefinesthedefactocurriculum.

defacto=exisGnginfact,actual,whetherintendedornot

1.  Mybackground

2.  Classroombasedassessment

3.  Tests‐purposes/func%ons

4.  The‘cardinalcriteria’forevalua%ngatest

5.  Conclusions

Targets

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QuizGme!

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AssessinganEnglisharGclesquiz

Context

• ConversaGonclass(listening&speaking)

• high‐beginnerlevel27

Whatisafundamentalproblemwiththisquiz?

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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

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Whatisatest?

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

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

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Tests–measuringfunc%on

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Atestmustmeasure•  Sometestsmeasuregeneralability,whileothersfocusonveryspecificcompetenciesorobjecGves.

•  Examples

•  AmulG‐skillproficiencytestmeasuresgeneralability;

•  aquizonrecognizingcorrectuseofdefinitearGclesmeasuresveryspecificknowledge.

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•  Atestmeasuresperformance,...

• but,theresultsimplythetest‐takersability,orcompetence.

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•  Performance‐basedtestssamplethetest‐takersactualuseoflanguage,

•  butfromthosesamplesthetestadministratorinfersgeneralcompetence.

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•  Awell‐constructedtestisaninstrumentthatprovidesanaccuratemeasureofatest‐taker’sabilitywithinaparGculardomain.

•  Construc%ngagoodtestisacomplextask.

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Yourassessmentprac%ces?

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Thinkaboutwhatis

happeninginyourcontextandyour

assessmentpracGces

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

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

YourassessmentpracGces?

Howdoyouassessyourstudents?

Foryou,whichofthefourskillsaremore/lesschallengingtotest?

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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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QuizGme!

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2010

•  Exploringhowprinciplesoflanguageassessmentcanandshouldbeappliedtoformaltests.

•  Theseprinciplesapplytoassessmentofallkinds.

•  Howtousetheseprinciplestodesignagoodtest.

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• Whatarethe‘fivecardinalcriteria’thatcanbeusedtodesignandevaluatealltypesofassessment?

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

terms,a“good”test?

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Fivekeyassessmentprinciples?

• Discuss• 3minutes

• Hint(fivenouns)48

Fivekeyassessmentprinciples

• PracGcality• Reliability• Validity• AuthenGcity• Washback

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KeyAssessmentPrinciples

•  ThesequesGonsprovideanexcellentcriteriontoevaluatethetestswedesignanduse.

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1.PracGcality

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• IstheprocedurerelaGvelyeasytoadminister?

Prac%calityconsidera%ons

•  thelogisGcalandadministraGveissuesinvolvedinmaking,givingandscoringanassessmentinstrument

•  theamountofGmeittakestoconstructandadminister

•  theeaseofscoring•  easeofinterpreGng/reporGngtheresults

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AneffecGvetestisprac%cal.

Thismeansthatit:•  isnotexcessivelyexpensive•  stayswithinappropriateGmeconstraints

•  isrelaGvelyeasytoadminister,and

•  hasascoring/evaluaGonprocedurethatisspecificandGmeefficient

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ThevalueandqualityofatestsomeGmeshingeonsuchni`y‐gri`yprac%cal

considera%ons.

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•  InclassroombasedtesGng,_________isalmostalwaysacrucialpracGcalfactorforbusyteachers.

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2.Reliability

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• Is all work being consistently marked to the

same standard?

• Areliabletestisconsistentanddependable.

•  Ifyougivethesametesttothesamestudentormatchedstudentsontwodifferentoccasions,thetestshouldyieldsimilarresults.

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Whatfactors

contributetothe

unreliabilityofatest?

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TestUnreliability‐contribuGngfactors

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

• Testreliability63

Q.Whatisonekeywaytoincreasereliability?

A.Userubrics

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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?

Validity‐definiGon

•  ‘Theextendtowhichinferencesmadefromassessmentresults

areappropriate,meaningful,andusefulintermsofthepurposeof

theassessment.’

(Gronlund,1998,p.226)68

•  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

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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?

Testtaskauthen%city

• tasksrepresent,orcloselyapproximate,real‐worldtasks

• thetaskislikelytobeenactedinthe“realworld”

• notcontrivedorarGficial81

AuthenGcitychecklist•  Isthelanguageinthetestasnaturalaspossible?

•  Aretopicsascontextualizedaspossibleratherthanisolated?

•  AretopicsandsituaGonsinteresGngenjoyable,and/orhumorous?

•  IssomethemaGcorganizaGonprovided,suchasthroughastorylineorepisode?

•  Dotasksrepresent,orcloselyapproximate,real‐worldtasks?

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5.Washback

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• Does the assessment have positive effects on learning

and teaching?

Washback=theeffectoftesGngonteaching

andlearning

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‐ posi%vewashback‐ nega%vewashback

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

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

•  Thereisnogewngawayfromthefactthatmostofthethingsthatgowrongwithassessmentareourfault,

•  theresultofpoorassessmentdesign‐andnotthefaultofourstudents.

(Raceetal.,2005)

•  Improvingstudentlearningimpliesimprovingtheassessmentsystem.

•  Teachersoxenassumethatitistheirteachingthatdirectsstudentlearning.

•  InpracGce,assessmentdirectsstudentlearning,becauseitistheassessmentsystemthatdefineswhatisworthlearning.

(Havnes,2004,p.1)

•  ThereissubstanGalevidencethatassessment,ratherthanteaching,hasthemajorinfluenceonstudents’learning.

•  ItdirectsauenGontowhatisimportant,actsasanincenGveforstudy,andhasapowerfuleffectonstudent’sapproachestotheirwork.

(Boud&Falchikov,2007)

RethinkingAssessmentinHigherEduca0on

“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