Eleven-year-old Nathan first grasped conservation of number, followed by length, liquid, mass, and then weight. This limitation of concrete operational thinking is known as

According to Freud, _______ is the basic motivation for all human behavior

a. instinct b. the striving for self-actualization c. the need to know d. the desire to become superior

Corey and Jennifer engage in a debate in speech class. Corey goes first and Jennifer goes second. Most students thought that Corey did a better job in the debate

Assuming that the quality of the arguments and presentation by the two speakers was equally good, this would be an example of a(n) ________ effect. a. primacy b. recency c. accessibility d. central route