The official FAQ page for the IELTS difficulties has been updated. It now includes answers to at least a few of the questions which have been posed by various observers.
For instance, we know that a total of 63,216 tests were affected. That’s at the high end of my estimated range.
And more specifically, we now know that:
- 93% of corrected tests (58,867) had an upwards correction to an individual test component
- 7% of corrected tests (4,344) had a downwards correction to an individual test component
- Five corrected tests had one downwards test component correction and one upwards test component correction.
It is also noted in the FAQ that no tests taken before August 2023 were affected.
More details at the link.