Research on reactions to pubertal changes indicates that
A) most girls get information about puberty from their doctors.
B) most boys do not know about ejaculation before the onset of spermarche.
C) boys often say that their first ejaculation occurred earlier than they expected.
D) most girls view the onset of menarche as traumatic.
C
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On a fixed-ratio schedule, reinforcement is given for the ______
a. first correct response after varying amounts of time have passed b. next correct response after a fixed number of responses have occurred c. first correct response after a fixed amount of time has passed d. next correct response after a varying number of responses have occurred
Belsky et al. (2006) found that what group of United States children was less compliant, less respectful toward adults, and more aggressive?
a. children who are from families who had parents who were professionals b. children from affluent families c. children who attend preschool d. children from low-income families