No bias profiles

About two-thirds of students (66%) have no bias profiles. In a no bias profile, the student’s results from the Verbal and Spatial Batteries are less than two stanines apart. There is only one general piece of information provided by the test, and that is the overall level, which will be well summarised by the mean CAT4 score. For this reason, we can divide the profile up into above average, average, and below average cognitive abilities