Frequently Asked Questions
The Woodcock-Johnson IV Tests of Cognitive Abilities or the Wechsler Intelligence Scale for Children® Fifth Edition(WISC®-V)?
Both the WJIV and the WISC -V are measures of cognitive abilities. While the WJIV was designed from its inceptions to measure the structure of abilities known as the Cattell–Horn–Carroll (CHC) theory of intelligence, the WISC was not. Subtests on the WISC-V can be arranged and analyzed using Cattell–Horn–Carroll (CHC) theory (post-hoc), however the assessment was not designed with the theory as its base.
Both the WJ(IV) and the WISC-V represent the gold standard of intelligence testing. Both can be used to calculate a full scale IQ score (FSIQ) and can be combined with tests from other batteries, such as the WJ(IV) Achievement Battery and the WJ(IV) Oral Language Battery to identify learning difficulties.
What is percentile rank?
Percentile scores range from the 1st through to the 99.9th percentile. The scores represent how an individual’s test score compares to the scores of other individuals within a particular comparison group. Scores are often compared to the scores of similar-age children.
For example, if a score is reported as the 60th percentile, this means that the individual has performed better than 60% of the comparison group.
Are IQ tests culturally biased?
The simple answer is yes, IQ tests can be both culturally and linguistically biased. We address this problem in two ways. Firstly while we are conducting the tests we make detailed notes about the child's test-taking behaviour. Secondly, we put every child's results through a program which is specifically designed to identify cultural and linguistic bias by looking for patterns in the subtest results.
Can I bring my other children to the assessment?
We understand that child care can be difficult to arrange. Our preference is for very young children or for those that struggle with impulse control, who may disrupt the assessment process for their sibling, not to attend. Please contact us if this causes difficulty for you in your current circumstances.
When is payment due?
Payment will be invoiced on the day of the assessment, minus any deposit. Reports can not be released without payment.