by Luis Gomez, Kenyon ’17
As a sophomore in college, the real worry for a job, work, and the various societal obligations I will have as an adult has not set in yet, but I see my senior friends stress out about it all the time. At the age of entering the real world what Roberts, Wood, and Caspi (2008) coined as “the maturity principle” is to set in and they will find jobs, settle down, and being responsible, functional members of society.
Sointu Leikas from the University of Helsinki and Katariina Salmela-Aro from the University of Jyväskylä conducted a study on how these life events that lead to maturing and becoming this responsible adult influences the changes in personality over time in young Finns. Taking a sample of 707 ninth graders (367 males, 332 female, 8 unspecified), they lead a longitudinal study but only taking data when the young adults were 20 and 23.