Webinar Choosing Tests b - Do-IT Profilerdoitprofiler.com/wp-content/uploads/2015/12/Webinar-Choosing-Tests.pdf · 55 1. Decide what you are trying to do and why Do we really want

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8December2015

Choosingtherighttest

DrIanSmythe

Firesidechat

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8December2015

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Backgroundviewing

8December2015

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1.  DecidewhatyouaretryingtodoandwhyDowereallywantaskillsorsubskill?

2.  Isitcriterionornormreferenced?

3.  Isitforrankingorforteaching?

Whytest?

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1.  You?

2.  Theschool?

3.  Examboard?

4.  Educa�onAuthority?

5.  Otherauthority?

Whohastoacceptit?

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ReliabilityValidityPopula�onSESLanguageDateoftes�ng

Criteria

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8December2015

Samplesizes

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Averagingthesystem

6 7 8 9 10 11 12 13

150

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8December2015

Averagingthesystem

6-10 11-15 16-20 21-25 26-30 31-35 36-40 41-45

150

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Guidelinesontestacceptability

8December2015

h�p://ptc.bps.org.uk/sites/ptc.bps.org.uk/files/Documents/Applica�on%20Packs%20and%20Forms/EFPA%20TEST%20REVIEW%20FORM%20and%20NOTES%20Version%203-42-EU%20v2.pdf

Whodecideswhichisright?

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Memorytests–thewhys

8December2015

h�p://www.dyslexia-interna�onal.org/content/Informal%20tests/Digitspan.pdf

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Tradi�onal:“Twoofthesamelengthandfinish”

Workingmemory

8December2015

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8December2015

Shouldscore120

Repeatedlyaverage80

SmallSD

Shouldscore120

Repeatedlyaverage120

SmallSD

Shouldscore120

Repeatedlyaverage120

Largevaria�on

Shouldscore120

Repeatedlyaverage80

Largevaria�on

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Howtocheatthesystem

8December2015

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Predic�ngdyslexia

6October2015

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1)Researcherasksagroupofschoolstohelp,andtestallchildren.

2)Researcherdecidewhoisdyslexic,usingsameprinciplesasusedinthetestbeingdeveloped

3)Sta�s�csseparatethetwogroups–dyslexicvsnon-dyslexic

4)Usegroupingsta�s�cstoshowpredictors

5)Ignorecorrela�onsbetweentests

Selffulfillingprophesy

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Howtomakeadyslexiatest

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Howtomakeadyslexiatest

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Grouping

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Whathappenswhentwotestsareinvolved?

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Testcri�que

h�ps://prezi.com/yoguemziaj5w/tomal-test-cri�que/

8December2015

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8December2015

Testcri�que

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8December2015

Testcri�que

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8December2015

Testcri�que

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8December2015

Testcri�que

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8December2015

Testcri�que

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Iden�fywhatyouwanttobetheoutcomeoftheassessmentprocess

Decidewhotheresultsarefor

Checkthefinedetailifcommercial

Donotassumeexpensive

orwidelyusedisgood

Summary

8December2015

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Nexttalk

Doesdyslexiaconfervisualadvantagesinsociety?

PresentedbyDrIanSmythe

Tuesday,12thJanuary-7pmUK�meLink:Dotr.im/12Jan16

8December2015

Manypeoplesuggestthatthosewithdyslexiahaveadvantagesintheareasofvisualskills.Butisthisacaseofnatureornurture?Todate,theanecdotalevidenceseemstosuggestthereisanadvantage,whilsttheresearchsuggestitis,atbest,ambiguous.DrSmythewillpresenttheevidence,andsuggestwhyheconsidersbothsidesmayberight.