抄録
The purpose of this study was to examine whether several aspects of personality, as measured by the Temperament and Character Inventory (i.e., novelty seeking, harm avoidance, reward dependency, persistence, self-directedness, cooperation, and self-transcendence), were determined in part by family factors (i.e., genes and/or familial environments). Analyses were conducted on a sample of 358 Japanese families (1224 individuals) using structural equation modeling (SEM). In our analysis, we operationally assumed that families with fewer than four children had missing data as a means of integrating different patterns of families simultaneously using full information maximum-likelihood (FIML) estimates. Results showed the influences of parent-offspring relationships, spouse and sibling correlations, gender differences, and heritability. Both familial environment and genetic sources of resemblance were suggested for temperament and character. Finally, future tasks were discussed.
