Severe Discrepancy Template
How did this severe discrepancy template get made?
A graduate student (Joe Salerno)
on Practicum assignment in New Jersey noticed that determination of severe
discrepancy that he would get from a
template on this web site and
similar “back of the envelope”
calculations differed from the determination that his school got from their
What system did that school use?
The system that his school used
was a computer program, called ESTIMATOR-NJ 3.0 that was developed
by Richard D. Baer, Ph.D. and Brad Althouse, M.S. and published by DB
Enterprises in Logan, UT, in cooperation with the Center for Persons with
Disabilities of Utah State University.
Who requested that the ESTIMATOR-NJ 3.0 program be developed?
The manual that comes with the
ESTIMATOR-NJ 3.0 states that
“Estimator-NJ: Version 3.0 was developed at the request of the New Jersey
Association of Pupil Services Administrators (NJAPSA)”
What is the NJAPSA?
www.njapsa.org states, “NJAPSA is the only state-wide professional
association for administrators responsible for pupil services.” About their
membership NJAPSA says, “You are eligible to join if you have district-wide
administrative responsibility in pupil services and provide professional
leadership in public or private schools, agencies, colleges or universities.”
Are School Districts/Child Study Teams required to use the
ESTIMATOR-NJ 3.0 program to determine severe discrepancy?
Absolutely not, the district must
set some standard for eligibility for special education, whether it is
categorical or non-categorical. If it is categorical, as most districts have,
then the district must set some standard for the determination of severe
discrepancy in the category of learning disabled. That is the policy under IDEA
2004 and under current NJ regulations.
Back to the difference between the ESTIMATOR-NJ
3.0 program and
your calculations, what was it?
After seeing that a difference
did exist between the severe
discrepancy templates on this web site and the ESTIMATOR-NJ 3.0 program,
the manual for the ESTIMATOR-NJ 3.0 was reviewed. The
Estimator program corrects the Predicted Achievement score for unreliability and
then takes the difference between this Predicted Achievement score corrected for
unreliability and the Actual Achievement score and uses that as a basis for
determining if there is a severe discrepancy. Other templates on this site use the difference between
Predicted Achievement (without any correction for unreliability) and the Actual
Achievement score as the basis for determination of severe discrepancy.
A copy of the template for determining severe
discrepancy using this method is available.
To download template press here.
Please send me
an email if you download the template. I will be happy to answer
any questions you may have. Please do not distribute the template to