These are extraversion, agreeableness, conscientiousness, neuroticism, and openness to experience (Soto & John, 2012). This ranged from early adulthood to middle age (Soto & John, 2012). One reason for this study is to examine whether the Big Five domains can summarize personality attributes, or whether facets, which are subdomains, capture different age trends (Soto & John, 2012). Researchers have indicated that the Big Five domains do not protect all personality behaviors from early adulthood through middle age (Soto & John, 2012). Some aspects were more prevalent than others. An example would be Openness to Actions which showed that one aspect of adventurousness decreases with age, but intellectualism and idealism do not decrease (Soto and John, 2012). This type of study can take up to 40 years to obtain results, however, with new longitudinal study techniques, this can be done over a period of 4 to 12 years (Soto & John, 2012). That helps, because we're not in different time periods that are so long and different. They concluded that the facets of the Big Five domains are as important as the Big Five factors in testing personality peculiarities. Further studies on the sub-aspects would be needed as they are more important. This would show how the Big Five domains actually don't do this