School-age children master concrete operational tasks __________
A) all at once
B) gradually, in a continuum of acquisition
C) much later than Piaget believed
D) after they master abstract thinking
Answer: B
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Rates of crime begin rising in the mid-teens. At what age does crime peak?
A. 12 years B. 14 years C. 16 years D. 18 years
As Molly is walking across campus, a car swerves toward her. Her heart races as she jumps out of harm's way. This mobilization of energy is due to the action of Molly's _______?
a. somatic b. skeletal c. parasympathetic d. sympathetic
Following puberty, there is no overlap between the sexes in their levels of:
A. warmth. B. testosterone circulation. C. sexuality. D. self-esteem.
The equipment used to measure depth perception in infants consists of a piece of heavy glass. A checkered pattern appears under one half of the glass sheet, making it seem that the infant is on a stable floor. On the other half of the glass, the pattern
drops down several feet. This equipment is known as a __________. a) cleft palate b) visual cliff c) cliff hanger d) visual cleft