The study looked at 98 men, ages 19 to 72, all of them in relationships. Heights ranged from 5’1″ to 6’5″. In questionnaires, the study authors asked whether, “whether tall men are more satisfied with their relationship, less prone to jealousy,” and treat their partners differently. Comparing results from several questionnaires, including the “Multidimensional Jealousy Scale,” the researchers found that taller men were indeed happier and less jealous, but also more likely to monopolize their partner’s time and threaten perceived rivals, perhaps because they could get away with it and still seem attractive, suggest the researchers.

Shorter men, in contrast, reported more jealousy but were more likely to try “increasing the love and care that they show their partner,” perhaps as a way to keep them.