During an African famine, a roadside child looks frighteningly thin, with clearly visible ribs. The child suffers from
a. marasmus.
b. kwashiorkor.
c. iron deficiency anemia.
d. nonorganic failure to thrive.
A
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A researcher who tests the same individuals over thirty years, when they are 10, 20, 30, and 40 years old, is conducting:
cohort research. longitudinal research. continuous research. cross-sectional research.
Most investigations into theory of mind address children's ability to
A) detect their own and other people's perceptions, feelings, desires, and beliefs. B) keep track of the sources of information in memory. C) monitor progress toward a goal and redirect unsuccessful efforts. D) use mnemonic strategies on tests of memory.
In Mali, mothers encourage babies to sit and stand at an early age, and they often suspend the infants by their arms or legs. Babies raised in this culture are
A) typically two to three months behind North American babies in the major motor milestones. B) typically ahead of North American babies in the major motor milestones. C) more susceptible to injury during adolescence than babies raised in North America. D) more athletic as adults than babies raised in North America.
Steve can't leave home without checking the doors and windows repeatedly to see that they are locked. when he finds that everything is locked, a sense of relief comes over him. which of the following learning principles is likely to be maintaining his compulsive checking behavior?
a. self-reinforcement b. negative reinforcement c. punishment d. positive reinforcement