Age trends in HEXACO-PI-R self-reports

We examined age differences in the six broad HEXACO personality factors and their defining facets, using self-reports from an online sample (N approximate to 100,000, ages 14-74). Honesty-Humility showed an upward trend of about one full standard deviation unit between ages 18 and 60. Age trends for Emotionality and Extraversion differed by facet, but overall were downward for Emotionality and upward for Extraversion. Agreeableness showed relatively weak age trends. Conscientiousness and Openness showed upward age trends during the teen years (extending to the mid-20s for Conscientiousness), but age trends thereafter differed considerably by facet. Results are discussed in relation to previous findings for the Big Five, to the age-crime curve, and to possible evolved developmental origins. (C) 2016 Elsevier Inc. All rights reserved.