Before revision: Criticism However, there is an research carried by psychologists at Michigan State University and the University of Minnesota, is based on a relatively huge data base of 1,296 couples who have been married for an average of 19.8 years suggested that the Convergence doesn't stand.
After revision: Criticism However, as regards certain personality traits, like the degree of "introvertness" or of "sourness", there was an research carried by psychologts at Michigan State University and the University of Minnesota, is based on a relatively huge data base of 1,296 couples who have been married for an average of 19.8 years out