Katsuharu Nakazato

TL;DR: The reliability and validity of a multidimensional 13-item index of competence, called the TMIG Index of Competence, were tested with data of 6776 elderly community residents and confirmed high reliability of the index with reliability coefficients of Alpha, test-retest, and correlation between the second-order factor score and the total score.

TL;DR: Perceptions of national character appear to be unfounded stereotypes that may serve the function of maintaining a national identity.

TL;DR: The authors found that cross-cultural variations in aging perceptions were associated with culture-level indicators of population aging, education levels, values, and national character stereotypes, and these associations were stronger for societal views on aging and perceptions of socioemotional changes than for perceptions of physical and cognitive changes.

TL;DR: Investigation of scores on anxiety among adults of different ages found that anxiety declined linearly over the series of age groups and a sex difference was also observed on trait anxiety; women showed higher anxiety than men.

TL;DR: The authors found that adolescents were seen as impulsive, rebellious, undisciplined, preferring excitement and novelty, whereas old people were consistently considered lower on impulsivity, activity, antagonism, and openness.