Gay and lesbian couples are just as committed in their relationships as heterosexuals and the legal status of their union doesn’t impact their happiness, according to new research.

In two new studies that compared same-sex and heterosexual couples using different factors and methods to assess their happiness, scientists found few differences.

“Among the committed couples, there were very few differences that we were able to identify either in terms of how satisfied these couples were, how effectively they interacted with one another or how their bodies responded physiologically while they were interacting with one another,” Glenn I. Roisman, of the University of Illinois at Urbana-Champagne, said in an interview.

He and his colleagues compared 30 gay male and 30 lesbian couples with 50 engaged heterosexual couples, 40 older, married heterosexual couples and dating heterosexual couples.

They found that regardless of sexual orientation, as the level of commitment increased, so did the ability to resolve conflict—debunking the myth that same-sex relationships are not built on the same level of commitment as heterosexual ones.

In the second study researchers, who focused on how legal status affected relationship quality, followed 65 male and 138 female same-sex couples in civil unions, 23 male and 61 female same-sex couples not in civil unions and 55 heterosexual married couples over a three-year period.

Read the full story from Canada.com.