I don't know enough from this article to know if they're actually measuring dread. If I were in the study I'd think "hm, I'd rather get a big shock now and leav

I don't know enough from this article to know if they're actually measuring dread. If I were in the study I'd think "hm, I'd rather get a big shock now and leave ASAP than wait 15 minutes for a shock" - i.e. the main factor in my decision is how much I think my 15 minutes is worth. Did they make people wait 15 minutes anyway even if they chose to get the shock ASAP?