Which theorist identified sixteen source traits using factor analysis?

Which is not a characteristic of a controlled experiment?

(a) manipulation of the aspect of the environment in which you are interested (b) control of the aspects of the environment in which you are not interested (c) manipulation of the dependent variable (d) random assignment of subjects to groups

Amy wants to be a dentist but can't get into dental school despite two years of trying because her grades are too low. She is angry at herself for not earning better grades and feels that continuing to apply to other dental schools is hopeless

Her feelings stem from ______. a. anxiety c. conflict b. internal dissonance d. frustration