Since eHarmony publicizes this fact, the site may well attract online daters who are sympathetic to its philosophy

Since eHarmony publicizes this fact, the site may well attract online daters who are sympathetic to its philosophy

Women prefer similarity in subtler ways as well: A woman shows a small but highly statistically significant preference for a man who uses similar adjectives to describe himself, with “physically fit,” “intelligent,” “creative” and “funny” having the strongest effects. Men showed no such preference.

There are some nuances here. For another thing, the matches people message depend on the options eHarmony’s algorithm gives them, and that sample is skewed toward similar people. Jonny Beber, an eHarmony scientist, explained to me that the algorithm tries to optimize immediate attraction and long-term compatibility, and that because the company believes that “opposites attract …