“…We examined the four specific aspects of personality development-identity certainty, confident power, generativity, and concern about aging-that were assessed by Stewart et al (2001) and Zucker et al (2002). Identity certainty derives from Erikson's (1950Erikson's ( , 1964Erikson's ( , 1968Erikson's ( , 1980 concept of identity as an affirmed sense of self and of one's place in the social world; confident power assesses feelings of mastery and competence (Helson & Wink, 1992;Neugarten, 1968); generativity reflects a preoccupation with a world beyond the self and a desire to make a contribution to future generations (Erikson, Erikson, & Kivnick, 1986); and concern about aging represents the popular conception of aging as a preoccupation with "time left," the approach of death, and decreased physical strength and attractiveness (Clausen, 1986;Levinson, Darrow, Klein, Levinson, & McKee, 1978;McAdams, 1985).…”