For studies with a lot of concepts (30+) it would be amazing to be able to track on straightliners / speedrunners. Due to respondent fatigue for studies with high amount of concepts about 5% of the sample on average end up straightlining (based on my personal experience with larger tracker studies with many concepts).

I think there are two potential solutions:

1) flag / terminate respondents who takes less that X amount of time to rate a concept.

2) add an ability to integrate "Trap" cards into the concept set, that would instruct respondents to "Please swipe right" or "Please swipe left". If person fails more than X number of those - we flag / terminate them.

Having something like this would greatly improve sample qualify for studies with large amount of concepts tested.