Correlation Between Tests
By Inderbir Kaur Sandhu, Ph.D
My son (age 6 yrs 4 mths) just took the WJIII. Based on his scores
(Broad Math >99.9 - SS 151 and Broad Reading 99.7 SS 142) it was
suggested he test for admission to the highly gifted program in our
district. He now has to sit for the Stanford Binet V and WIAT II. While
I know the tests measure different things - I was just curious...what is
the correlation between the three tests?
We originally had him take the WJIII just to see how well his non
traditional private school was preparing him - so the results are
somewhat surprising to us. But now - we are just wondering if based on
his WJIII results should we expect to see positive results on the two
tests he now has to sit for? He's a great test taker....doesn't get test
You are right to acknowledge the fact that these tests have varying
focus. However, it is found that the reading subtests of the Woodcock
Johnson Third Edition (WJIII) and the Wechsler Individual Achievement
Test Second Edition (WIAT II) is highly correlated. Therefore, it can be
assumed that one test may be able to predict another. The Stanford Binet
V (SB V) and WJIII also appears to be significantly correlated.
It is known that the WISC-IV and the SB V are the two most widely used
intelligence tests and are usually used along with the WJ-III Tests of
Achievement to help make placement decisions within the school system.
Therefore, the WJIII is a test that is valued well with these other
I don't think there is anything to be concerned about since your son has
done very well for the WJIII test. Since he is a great test taker, it
would be helpful as well as children do tend to get rather anxious and
it does an effect on the scores at times. I believe you can expect to
see some positive results on the tests but if you don't, do check with
the tester or an educational psychologist to determine the areas that
brought down the scores. Good luck!