December 11, 2017. EHarmony remains committed to investigating and understanding what makes long-term relationships successful by conducting ongoing, rigorous scientific research to keep the matching model up-to-date and relevant for domestic and international markets. American girl group, fifth Harmony has released three studio albums, six extended plays, eleven singles, and seventeen music videos. Retrieved June 3, 2015. "Down "aria Chart Watch #424". A b c "fimi: Certificazioni Archivio". Warren observed that if people were matched based on compatibility they would have more satisfying relationships.
Retrieved June 24, 2016. Retrieved March 30, 2016.