Which of the following is in the best order regarding the age of first appearance of pubertal events for a typical boy?
a. Growth of testes, spermarche, initiation of growth spurt.
b. Initiation of growth spurt, growth of testes, spermarche.
c. Growth of testes, initiation of growth spurt, spermarche.
d. Growth of penis, growth of testes, spermarche.
Answer: c.
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Which of the following drugs are synthetic versions of testosterone and have been used by athletes who want to "bulk up" or promote muscle growth?
a. anabolic steroids b. GHB c. serotonin d. melatonin
Based on Harlow's research with monkeys, which of the following would prove to be most effective in comforting a frightened infant or child?
A. leaving the child alone B. talking to the child from a distance C. touching or holding the child D. offering the child something good to eat
According to Piaget, organization takes place
A) through direct contact with the environment. B) internally. C) in the zone of proximal development. D) externally.
The law of effect states that behavior followed by which kind of consequences will be repeated?
What will be an ideal response?