I have NO clue how to tell my scores if I don't register. I'm sure it was terrible, though. Clearly, this test is not the same as that last one, which I scored 96% on. This one requires much more executive functioning. I still saw all the balls, but the answer I saw was rarely the right answer. I'd see all five balls, but I'd think there were four. And I also have a lot of trouble with tests where I have to press a certain key for a certain answer. My normal reaction time is very fast, around 275-300 ms. But that is when I'm solely asked to click when I see something. When I have to actually enter an answer and remember which key to press to enter the correct answer, I fail miserably. I have lots of trouble with go, no-go tests and other similar cognitive computer tasks for this reason.
Edit: I think I registered for this site once a while back. Forget my password and user name, naturally. Used it one night only. But I do remember that there's that n-back test or whatever, and I can't even do the SIMPLEST level of that. It's hard enough for me to remember a quick visual sequence in and of itself, but I am truly incapable of watching a sequence AND remembering what happened LAST when the sequence NEVER STOPS!

But there's one test where you have to type in an ever-increasing string of nonsense letters that you see for only a few milliseconds. It is very similar to the number estimation test. Because I see everything, I was performing up to around 14 letters, if I recall correctly. Never could do it for numbers, though, due to my NVLD.
And, yes, I also have trouble with what Callista and others noted as far as hitting the wrong key. Especially if a key means one thing during one part of a test and then switches meaning in the next part.

I'm the opposite, I'm good with numbers but I couldn't get more than 5 on the consonant span you're talking about. I was even struggling with 5. But the N-back tests on that site would be a struggle for many, if not most, people on WP. Those are executive function tests. I scored 21 on the digit span test on that site yet I struggle with the numeric N back test set on 2 which is the lowest possible setting. The highest setting is 9. It's definitely not a problem with remembering numbers so it must be a severely F'ed up executive function. That's how I see it anyway.