A study released by the Proceedings of the National Academy of Sciences on Monday finds that, unfortunately for most men, size does matter.

The experiment, which was conducted at the Australian National University in Caberra, created 49 computer-generated life-size male figures, all ranging in height, shoulder-to-hip hip ratio, and flaccid penis size, NBC News reported on Monday. Brian Mautz, the author the study, said that the results prove that size does matter to women.

“As you increase the penis size, the amount of attractiveness scores get bigger,” said Mautz. “Penis size does affect attractiveness.”

Results were gathered by asking 105 females to rate the attractiveness of each male figure in the study as a possible sexual partner, rating each male on a scale of 1-17.

The study showed that the females (whose average age was 26) still found smaller penis sizes attractive. However, Mautz said that after three inches, attractiveness levels increased noticeably among those polled, and that subjects tended to spend more time studying the more well-endowed figures among the images. 

“Our results support the hypothesis that female mate choices could have driven the evolution of larger penises in humans,” Mautz said.

One 2012 U.K. study found similar findings that concluded that size does matter for women who prefer vaginal intercourse.

“Male anxiety about penis size may not reflect internalized, culturally arbitrary masculine stereotypes, but an accurate appreciation that size matters to many women,” said Stuart Brody, a researcher and psychologist at the University of the West of Scotland.

“Men feel legitimate anxiety when they enter the mating market about their intelligence, personality traits, sense of humor, social status, height, wealth and other traits known to be favored by women across cultures,” he said.