Dating app users swipe left or right 'based on attractiveness and race'

US researchers found attractiveness and race preferences were the top predictors of whether people would swipe left or right – and nearly twice as important as any other factors. Other individual characteristics – such as personality and hobbies – were poor predictors of which way someone would swipe. On dating apps, a swipe left means you're not interested in the person, while a swipe right means you are interested. The average time for swiping right was just below one second. However, if a swiper didn't like someone, this time got even shorter to about half a second.