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Interpretation of KBIT-2 Percentile Score
By Inderbir Kaur Sandhu, Ph.D
Q: My son was given an IQ test to determine whether he was eligible for the gifted program at his school. His teacher asked for the test to be given to him based on this standardized test scores as well as his work in class. He was given IQ the test this school year, and I received a letter from the district only stating that he was not eligible for the gifted program. I requested more information from the district and I received another letter stating:
Test: KBIT - 2 - Kaufmann Brief Intelligence Test, Second Edition Score: 84%
I have tried to get more information, but have so far been unable to get a clear answer as to what this means. How do I interpret this information? Don't know if you need this, but my son is 10. Thank you for any information.
A: K-BIT-2 is a brief assessment (more of an ability assessment) for screening children with high ability. It takes about 20 minutes to administer the test. It is quite commonly used for evaluations for gifted programmes. For admission into gifted education programmes, there is usually a cut off point for first level screening. Usually the cut-off percentage is 97% (an IQ score of about 128 onwards)
After the first screening, other screening methods may be used for further screening. There is always exception to the case if entry requirement is not met; based on other criteria determined by the school or district. In your son’s case, I would think that he might not have met the cut-off percentage. Based on the standard conversion (mean of a 100 and standard deviation of 15) a percentile of 84 would mean a standard score of about 115.
For admission purposed, it is unlikely that he would be selected into the gifted education programme. However, if you feel that it is unlikely that he scored such (you need evidence of his ability), you may want to speak to the school and perhaps get a retest. There is no harm finding out. In the worst case, you could also see a private psychologist and get him tested on a more comprehensive intelligence test (e.g., the WISC or SB). Good luck!
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