The IQs of ten youngsters with severe learning difficulties were tested on the South African Intelligence Scale before starting with Audiblox, and again after receiving 40 hours of one-on-one instruction. Their ages were between 7 and 18.
While 40 hours of Audiblox instruction is not enough to overcome a learning difficulty, it is usually enough to start seeing results on standardized tests. The increases in verbal, non-verbal and full scale IQ are highly significant according to the two-tailed t-test.
|Verbal IQ Subtests|
|Mean Verbal IQ||85.4||91.0||Significant at the 0.001 level|
|Non-Verbal IQ Subtests|
|Mean Non-Verbal IQ||92.6||105.1||Significant at the 0.001 level|
|MEAN FULL SCALE IQ||87.0||97.1||Significant at the 0.001 level|