Interpretation of K-BIT 2 Scores
By Inderbir Kaur Sandhu, Ph.D
My son who has ADHD and is currently on medication was recently tested
by his school -Using the KBIT 2. His scores were:
Verbal- 129 -percentile-99
non verb-124- percentile-95
Not sure what it all means? The letter does state a score of 130 0r
above warrants further testing from a school Psychologist) any help is
The Kaufman Brief Intelligence Test, Second Edition (K-BIT 2) is used to
measure verbal and nonverbal cognitive ability. It is used to obtain a
quick estimate of intelligence, estimate an individual's verbal versus
nonverbal intelligence and/or to screen to identify students who may
benefit from enrichment or gifted programs. Additionally, this test is
also able to identify high-risk children through large-scale screening
who may require a more comprehensive evaluation. So, briefly, it serves
the purpose to provide a relatively quick and accurate estimate of
abilities; and to identify students who may benefit from gifted or
enrichment programs. This test is developed by leading cognitive ability
experts Alan and Nadeen Kaufman, therefore, it is assumed that this test
provides highly valid, reliable results and is useful for a broad range
Based on a mean of 100 and standard deviation of 15, your son's scored
above average (about 85-115 should be within the average range on a bell
curve) for the K-BIT-2. His scores are in the upper extreme of scores,
which indicates very high abilities especially for verbal abilities.
Percentile is most commonly found on intelligence and achievement test
scores. It refers to other test takers' scores that an individual equals
or exceeds. This means if the child scored 99 percentile, he did better
or at par with 99 percent of other test takers in the same group (age).
Percentile indicates what percent of the subjects scored below this
child. Gifted students often score in the 98th or 99th percentile, and
as seen in the composite (overall) scores of your son, he may be
considered for a gifted programme.
I would think further testing is for all students who meet the cut-off
point in the test to determine a programme that is better suited for
them. A composite score of 130, which is 2 standard deviation away from
the mean, is usually used as a baseline score for such programmes
(different schools may use different base point). I would look at it
positively since he scored well and may be catered for better in a
gifted programme. You may want to find out a little more about his very
slightly lower score on non verbal (compared to his verbal score).
Hope that helps. All the best!