Evolutionary psychologists believe that __________
a. understanding personality differences have helped humans survive and reproduce
b. personality differences are a threat to our existence
c. most people have the same two underlying personality traits
d. we are fascinated with personality traits now because we have more time on our hands
Answer: A
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Regarding operant conditioning, which of the following is an example of negative reinforcement?
A) A student is sent to detention for fighting B) A student is exempted from a weekly quiz for exemplary homework C) A student loses earned free time for playing with lab equipment D) A student turns in neater homework when the teacher praises neatness
New parents may be surprised to learn that newborns
A) sleep for a very small amount of time early in life. B) lose a small amount of weight in their first days of life. C) consume a lot during the first few days of life. D) get few health benefits from their mothers' milk initially.