For preadolescent and adolescent boys the total

60)
For preadolescent and adolescent boys, the total frequency of masturbating increases ________, and for
preadolescent and adolescent girls the total frequency of masturbating increases ________.
60)
______
A)
gradually; rapidly
B)

rapidly; rapidly
C)
gradually; gradually
D)
rapidly; gradually
61)
Recent research conducted by Udry concerning the relationship between hormones and sexual activity suggests
that the best predictor of whether or not a teenage boy will be sexually active is
61)
______
62)
Study of the relationship between hormones and sexual activity has demonstrated that the hormone most
strongly associated with sexual activity in girls is
62)
______

progesterone
63)
What two factors did Udry find predisposed girls to be sexually active?
63)
______
64)
Recent research by Udry concerning the relationship between hormones and sexual activity in adolescence
suggests that
64)
______
A)
testosterone level does not predict sexual activity in girls.
B)
high levels of estrogen and progesterone are related to low levels of sexual activity in both boys and girls.
C)
testosterone level is a stronger predictor of sexual activity in boys than in girls.
D)
high levels of male hormones predict sexual activity in boys and high levels of female hormones predict sexual
activity in girls.
65)
During adolescence, boys typically masturbate with a frequency of about ________, whereas girls do so about
________.

65)
______
66)
Compared to other studies, how do trends in child and adolescent masterbation activity compare to what Kinsey
found with his research in the '50s and '60s?
66)
______