Biology Forums - Study Force

Piaget's cognitive-developmental theory:
 
  a. has been validated - infant cognitive development occurs in discrete stages.
  b. has not been observed cross-culturally.
  c. is an excellent theory for understanding infant social development.
  d. is a very comprehensive theory of cognitive development.

Question 2

What regulates the menstrual cycle?
 
  a. phases of the month that coincide with lunar phases
  b. increases and decreases in estrogen and progesterone levels
  c. the presence or absence of androgens
  d. none of these

Question 3

What is the earliest age that a rudimentary knowledge of object permanence has been found?
 
  a. 6 months c. 8 months
  b. 4 months d. 12 months

Question 4

Which of the following is true about the advent of puberty in boys and girls in the United States?
 
  a. The age of advent has increased in recent years.
  b. The age of advent has remained the same in recent years.
  c. The age of advent has increased for girls in recent years, but decreased for boys.
  d. The age of advent has leveled off for boys and girls in recent years.

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