If you want to check your typing speed, you might prefer this test. It's the one researchers used in that experiment, and uses everyday sentences, rather than the encyclopedia-like paragraph of the previous test. https://typingtest.aalto.fi/
But this might be a better way to figure out if typing speed is an issue on solving the minis. After you've solved it, hit Reset, and fill it in again a few times. What's the fastest you can complete the grid when you're sure of the answers?
I took the test twice.
The first time, I focused on accuracy. My overall WPM was 50, with my fastest sentence being 84. I made .35 percent uncorrected mistakes, which was is the lowest demographic. The second time, I focused on speed. My overall WPM was 63, with my fastest sentence being 91. I left 4.75 percent uncorrected mistakes.
I think that I could probably do faster and more accurate with my own sentences. The test format threw me off a bit. Maybe I'll try again later...