Retesting on WISC-IV or SB-V
By Inderbir Kaur Sandhu, Ph.D
Q: I have a 7 & 9 month old boy and
demonstrating more like a 14 year old interest and intellectual
abilities. We was tested him when he was 6 and 4 month on the WISC-IV
when he was in first grade when his teacher wanted to retain him. His
scores are the following:
We decided not to retain in first grade. So we switch to a charter
school for second grade. He did well but the Charter schools have
policies to be beyond a proficient level to move on to 3rd. So he retain
once again. So this year we decided in a small Independent private
school with a small classroom size 10 no more 20 students for 2nd grade
again. Very expensive!
During his 2nd grade at the charter school my son had some sensory
issues. So he is in Occupational therapy currently. This make sense if
you notice his IQ test on PS:115*.
Since my son is being retained and doing 2nd grade again in a completely
in a new environment I noticing more enrichment courses into he future.
This means even more expense.
So I'm looking into Mensa for discounts and my son missed the FSIQ
requirement because is FSIQ is 129 for membership. Mensa does not accept
My Problem is deciding on retesting? Should I retest on the WISC-IV or
SB:V at 8 years old? Please help?
It is know that tow of the most commonly used intelligence tests for
children and adolescents are The Wechsler Intelligence Scale for
Children-Fourth Edition (WISC-IV) and the Stanford-Binet-Fifth Edition
(SB5). A research study in 2012 revealed that there was a significant
difference between Full Scale IQs on the two measures, with scores being
higher on the WISC-IV. This concludes that the WISC-IV and SB5 cannot be
presumed to be interchangeable measures of intelligence. They stress on
different measures of intellectual ability. Therefore, the scores from
these tests should be compared one to one. However, it has been noted
that there are some studies which suggest that the highly verbal kids
tend to do better with the WISC-IV compared to the more mathetically-inclined
kids who apparently fair better on the SB-5.
As for retesting, it appears that children who are tested at a younger
age rarely score lower than the previous score. It is noticed that they
may likely score similarly especially if the test has a similar ceiling.
It is also likely that they score similarly especially if there were
issues during the first test (e.g., physiological, motivation, anxiety,
etc.). In fact if the child has some learning concerns that has been
attended to, they may score higher as well.
It is best to seek advise from a few educational psychologist for help
in deciding which test may prove better for a higher score to meet the
cut off point for MENSA admission. Having said that, this should not be
the reason for testing. Many other support groups for gifted children
exist and one need not get admission into MENSA for that support. There
are gifted children who may not meet the criteria simply because they
are twice exceptional; therefore a score alone without looking at other
factor may be biased towards certain gifted children. Good luck.
Further replied from reader:
Thank you for the advice. Meanwhile I was waiting for your response I
spoke to a Board-certified Pediatric Neurologist that is a researcher on
sensory processing disorders suggested to retest on WISC IV before the
Summer 2015. I have decided on retesting to see the Occupational Therapy
demonstrating progress on the Processing Speed. I completely put Mensa
My son has had a year of Occupational Therapy for lack of coordination.
I really want to see and learn from the result from the WISC IV. If I
notice an increase on his Processing Speed this will validate in my sons
case that the early intervention and occupational therapy is a success.
I hope the results may help other children or gifted children with
sensory issues. Again Thank you!