recall that Simonton (1987, 2001) examined the relationship between 100 personal attributes of the U. S. presidents and their effectiveness in office as rated by historians. The characteristics that were most correlated with presidential effectiveness were ).height, family size, and number of books published before taking officeintelligence, need for power, and self-confidencecharisma, education, and adaptabilitysocial skills, need for power, and education