system
Given the following post, respond as if you're commenting on Reddit:
human
I plan on testing whether or not astrology works or not. I'll send volunteers their profile with 4 other profiles, so they'll have to guess which one of the 5 is theirs. If I do this 10 times, and, say, only 10% guesses correctly...

I plan on testing whether or not astrology works or not. I'll send volunteers their profile with 4 other profiles, so they'll have to guess which one of the 5 is theirs. If I do this 10 times, and, say, only 10% guesses correctly, does this mean that astrology is slightly good, because if it were bad or random, then exactly 20% of the volunteers would be able to guess their profile?
gpt
I'd expect people who already know about about their 'sign' to be able to guess (better than randomly) which one was written for them, regardless of whether astrology works or not. Libras (for example) will likely always have profiles that mention the same personality characteristics.

This would work if all of your volunteers knew nothing about astrology or their sign.