The Student Status filter should get you mostly college students since the minimum age to participate on our platform is 18. However, to make sure you’re excluding mature students and older high school students, you can also add an age filter. Limiting it to those aged 19 - 25 should be sufficient.
Yes, if you’re confident that college-aged baseball players would have also played high school baseball, then running two studies may not be necessary. And adding a demographic question to differentiate would be enough.
That being said, the only way to absolutely guarantee it is using the method I outlined. But it’s up to you.
I hope that makes sense