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Im a psychometrician

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... assessments with little or no psychometric guidance ... Traditional psychometrics didn't work. Few kids ... Not trying to retro-fit' traditional psychometrics ... – PowerPoint PPT presentation

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Title: Im a psychometrician


1
Im a psychometrician Im doing the best I
canKevin Sweeneyksweeney_at_ measuredprogress.org
Measured ProgressCCSSO-Large Scale Assessment
ConferenceSan Francisco, CAJune 25-28, 2006
2
History
  • We developed alternate assessments with little or
    no psychometric guidance
  • Several models emerged based
  • A States priorities
  • Prior usage of a particular model
  • Beliefs about what was best for students

3
Traditional psychometrics didnt work
  • Few kids
  • Customized assessments tailored to the
    individual
  • Purpose of the assessments were not clear
  • Vagaries regarding what states were required to
    do
  • Different agendas push a particular program in
    one direction or the other

4
This needs to be technically sound..
  • Yeah, right!
  • Lots of mental gymnastics to apply technical
    psychometric criteria to data that barely
    resembles test data
  • Help!!!!

5
Thinking deep thoughts
  • No common items
  • No common kids
  • Therefore, need to use common sense
  • Technical documentation focused on test
    development procedures, administration
    procedures, content validity, etc.
  • No consistent framework within which to work

6
NHEAI
  • It is within this context that the work for the
    grant was initiated
  • Helped to frame out ways to think about some of
    the major issues
  • Not trying to retro-fit traditional
    psychometrics
  • Finding different ways of addressing the same
    technical concerns

7
NHEAI
  • Double edged sword
  • Providing the framework is still not the same as
    filling in the details
  • Putting together a technical report is hard work
    in the best of situations
  • For the general assessment, many similarities
    across programs, therefore consistency in the
    T.R. across programs
  • For the alt. assessments, many fewer similarities
    across programs.

8
NHEAI
  • Its a start, but we still have a long way to go!
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