From the Wikipedia link, I don't see where Freudian concepts had part of this study but draw your own conclusions. IMO Freud's views were just bad science.
A theory that homophobia is a result of latent homosexuality was put forth in the late 20th century. A 1996 study conducted at the University of Georgia by Henry Adams, Lester Wright Jr., and Bethany Lohr[1] indicates that a number of "homophobic" males exhibit latent homosexuality. The research was done on 64 heterosexual men, 35 of whom exhibited "homophobic" traits and 29 who did not. Three tests were conducted using penile plethysmography. While there was no difference in response when the men were exposed to heterosexual and lesbian pornography, there was a major difference in response when the men were exposed to male homosexual pornography.
The researchers reported that 24% of the non-"homophobic" men showed some degree of tumescence in response to the male homosexual video, compared to 54% of the subjects who scored high on the "homophobia scale". In addition, 66% of the nonhomophobic group showed no significant increases in tumescence after this video, but only 20% of the "homophobic" men failed to display any arousal. Additionally, when the participants rated their degree of sexual arousal later, the "homophobic" men significantly underestimated their degree of arousal by the male homosexual video.
Still, researchers disagree about whether the "homophobic" males were stimulated by genuine latent homosexuality or negative emotions such as anxiety.
