Which of the following is NOT a subject variable?

The Social Influence Model was first developed in a prison setting with former heroin users

Indicate whether the statement is true or false

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 a. height, family size, and number of books published before taking office. b. intelligence, need for power, and self-confidence. c. charisma, education, and adaptability. d. social skills, need for power, and education.