By a certain time though, correct?  I know the county school system I just left is in the process of moving to RtI.

Kathy
----- Original Message ----- 
  From: Jeanette Schandelmeier 
  To: The Learning Disabilities Discussion List 
  Sent: Monday, November 02, 2009 6:49 PM
  Subject: [LearningDisabilities 4224] Re: descrepancy model


  IDEA has already been changed to require RTI.

   


------------------------------------------------------------------------------

  From: learningdisabilities-bounces at nifl.gov [mailto:learningdisabilities-bounces at nifl.gov] On Behalf Of Lucille Cuttler
  Sent: Monday, November 02, 2009 3:41 PM
  To: The Learning Disabilities Discussion List
  Subject: [LearningDisabilities 4223] Re: descrepancy model

   

  Brant, Thank you for your always concise and informative information. 

   

  The fact that the discreptancy model is flawed leads to the question:  when will the law be changed to be in accord with science.  Specifically, mandate that literacy instruction must start in the formative years.  

   

  The RTI model?  where can I find more about that? 

   

  Lucille Cuttler 

    -----Original Message-----
    From: learningdisabilities-bounces at nifl.gov [mailto:learningdisabilities-bounces at nifl.gov]On Behalf Of Brant Hayenga
    Sent: Monday, November 02, 2009 11:20 AM
    To: 'The Learning Disabilities Discussion List'
    Subject: [LearningDisabilities 4215] Re: descrepancy model

    Nora:

     

    Could someone explain to me the reasoning behind this method? 

     

    It's all about what the state regulations indicate. It is clearly not logical. The IQ-discrepancy model has been widely demonstrated to be an unreliable method for identifying students who have reading disabilities. The discrepancy model has lots of problems, one of which is that it tends to over identify higher IQ students, and under identify lower IQ students. Articles about the problems were published in 1998, but many states continue to at least include the discrepancy model in their regulations. After I read the attached article, I was astonished that at the time (2005) most states still required the use of the discrepancy method. We have to follow the laws, even if they are deeply flawed. NM recently switched to an RtI model.

     

    This regression

    effect leads to observed discrepancies

    that are larger, on average, than

    the true discrepancy for individuals

    with IQ scores above 100 and, therefore,

    increases the chances that such

    children will be identified as IQ discrepant.

    For individuals scoring below

    the mean on IQ, the opposite tendency

    occurs, making the observed discrepancy

    smaller than the true discrepancy,

    on average, so that their chances for

    identification as IQ discrepant are

    reduced.

     

    Brant Hayenga

    Educational Diagnostician 

    Stapleton Elementary/Rio Rancho Middle School

    (505) 896-0667 ext. 226 (District Office)

    (505) 891-8473 ext. 519 (Stapleton Elementary)

    bhayenga at rrps.net

     



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