New study reveals the scariest horror movie of all time

As a big horror movie fan I'm not sure the methodology used in this study is entirely sound. I get the idea of using heart rate but that is only an immediate reaction to the current stimulus. This could skew the study towards movies with more jump scares than actual frightening stories. I'd be interested in a similar study that measured the viewers vitals for a period of time after watching the movie. Maybe show them the movie late at night and measure how quickly they are able to fall asleep.
I totally agree with this. It doesn't measure the sensation of slowly growing dread, which doesn't cause a sudden racing pulse, but is far scarier over all and harder to pull off, so rarer and more valuable in a horror movie. A heart monitor would consider me jumping out and saying 'Boo!' to my little brother when we were kids truly scary, but back then the monster under the bed was far worse!