BIASED THESIS "Is there consistency over time in personality traits of an individual’s partners? "

https://www.doria.fi/bitstream/handle/10024/167845/martin_julia.pdf?sequence=2

Please notice there are several normative tests to MEASURE personality and several ways to calculate SIMILARITY

An exercise of similarity.
https://onlinedatingsoundbarrier.blogspot.com/2010/03/exercise-of-similarity.html

Online dating website eHarmony recently recruited Ver Steeg to improve its matchmaking process,
https://onlinedatingsoundbarrier.blogspot.com/2016/11/online-dating-website-eharmony-recently.html

The key to long-lasting romance; COMPATIBILITY is: STRICT PERSONALITY SIMILARITY and not "meet other people with similar interests".  
 
Please read: The 8 tips to innovate in the Online Dating Industry!
http://onlinedatingsoundbarrier.blogspot.com.ar/2013/12/the-8-tips-to-innovate-in-online-dating.html
 
The Secret Sauce Behind Online Dating ? There is no one yet!
http://onlinedatingsoundbarrier.blogspot.com.ar/2016/07/the-secret-sauce-behind-online-dating.html
 
Matchmakers Emerge as an Antidote to the Agony of Online Dating ???
https://onlinedatingsoundbarrier.blogspot.com/2019/03/matchmakers-emerge-as-antidote-to-agony.html

“Top 45 Top Scientific Papers For The Online Dating Industry”
http://onlinedatingsoundbarrier.blogspot.com.ar/2012/02/top-45-scientific-papers-for-online.html
http://www.onlinepersonalswatch.com/internetdatingscience/2012/02/top-45-top-scientific-papers-for-the-online-dating-industry.html
Please remember: Personality traits are highly stable in persons over 25 years old to 45 years old. 
 
WorldWide, there are over 5,000 (five thousand) online dating sites:

- but no one is using the 16PF5 (or similar) to assess personality of its members!

- but no one calculates similarity with a quantized pattern comparison method!

- but no one can show Compatibility Distribution Curves to each and every of its members!!! i.e. if you are a man seeking women, to show how compatible you are with a 20,000,000 women database, and to select a bunch of 100 women from 20,000,000 women database.

- but no one is scientifically proven!  No actual online dating site  is "scientifically proven" because no one can prove its matching algorithm can match prospective partners who will have more stable and satisfying relationships (and very low divorce rates) than couples matched by chance, astrological destiny, personal preferences, searching on one's own, or other technique as the control group in a peer reviewed Scientific Paper for the majority (over 90%) of its members. 

The Online Dating Industry does not need a 10% improvement, a 50% improvement or a 100% improvement. It does need "a 100 times better improvement"

All other proposals are NOISE and perform as placebo.   

See How LIFEPROJECT METHOD calculates similarity between quantized patterns using an adapted quantum mechanics math equation same as "Teller Ulam design".  
http://onlinedatingsoundbarrier.blogspot.com.ar/2012/07/quantifying-online-dating-revolution.html

LIFEPROJECT METHOD is like the "Teller Ulam design" for the Online Dating Industry.
In this case 100 times more powerful than actual matching algorithms.
 
Not 100% better, 100 TIMES better
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/05/lifeproject-method-versus-eharmony.html