The first change signaling puberty in boys is usually:
A. appearance of straight pubic hair
B. minor voice change
C. increase in penis/testicle size
D. first ejaculation
Ans: C. increase in penis/testicle size
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The firing rate of a neuron is equivalent to the:
a. number of action potentials per unit of time b. speed of a resting potential c. number of resting potentials per unit of time d. speed of an action potential
Which of the following cautions suggest that it would be questionable to apply Freud's theory to a broad, multicultural population?
a. Freud's theory uses stages to understand behavior. b. Freud's subjects were all upper-middle-class Austrians. c. Freud's subjects included both male and female experiences. d. Freud's work was conducted examining childhood which includes similar universal experiences.
Who among the following is using a self-report measure to assess the trait of extraversion in the context of personality assessment?
A. Dr. Portillo is recording the extraversion scores of all the participants at his own laboratory. B. Dr. Portillo is interpreting participants' responses to the Thematic Apperception Test (TAT) pictures. C. Ron, a graduate student is examining his own extraversion scores on a test of the Big Five dimensions. D. William, a postdoctoral research fellow is recording the number and length of conversations participants initiate in a laboratory situation.
Oppositional defiant disorder is ______ common among boys than girls before the age of 12 It is ______ common among boys than girls after age 12.
a. less, less b. more, less c. less, more d. more, more