[psb31]

Thanks! We're actually cheaper than MTurk for the same participant reward. We take a 33% fee, while MTurk takes 40%.

1) You can run follow up studies through our platform using anonymous identifiers we provide.

2) ~40%

3) We have many more filters when you create an account. The "Number of children" filter is actually a followup to a "Do you have children?". If you select "No" you'll see we have ~ 38,755 active participants who are childless.

4) Good question, I don't have good stats on this right now. The process of setting up a study is mostly touchless for us, especially for 'expert' users who have run online research elsewhere. Support mostly consists of billing issues, custom filtering, and complex studies (we sell to universities, so billing can be complex). We're working on improving onboarding and making the whole process as self-serve as possible.

[slugalicious]

How are you selling to universities? Do you mean individual labs, or departments, or enterprise level university accounts? My experience has been that individuals are easy, departments are hard, and universities are next to impossible. Since your product is ad hoc, perhaps it's easier. You might want to think about how you could offer this as a SaaS.