Over the years, scientists have taught American Sign Language (ASL) to several chimpanzees and gorillas. Based on your text's discussion, which of the following best reflects the number of signs these animals have been able to understand?
A. 10 to 50
B. 50 to 100
C. 100 to 200
D. 200 to 1,000
Answer: D
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Sapolsky (2004) argues that for humans, from an evolutionary perspective, psychological stress is a(n)
a. "recent invention.". b. "adaptive benefit.". c. "long-term selection advantage.". d. "nuisance variable.".
When infants reach the age of viability at 24 weeks, they have about a ______ % chance of surviving outside of the uterus if given high-quality medical treatment
a. 90 b. 70 c. 50 d. 10
Which of the following is an example of people creating their own nonnormative life event?
A. Pablo, a 72-year-old, begins training to climb Mount Everest. B. Tina, a 14-year-old, travels to Europe during her summer vacation. C. Natasha, a 11-year-old, begins learning to sketch. D. Sam, a 24-year-old, loses his right arm in an accident in his factory.
Recent research suggests that theory of mind competence at age 3 was related to
A. a higher level of metamemory at age 5. B. the number of siblings a child has. C. superior genetics. D. extended screen/media time during the preschool years.