Dominant baboons were found to have better physical health than subordinate ones because they had
A. more food and mates.
B. more resting cortisol levels.
C. more predictability and controllability.
D. more intelligence and leadership.
Answer: C
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A population has ? = 50 . What value of ? would make X = 55 an extreme value out in the tail of the distribution?
a. ? = 1 b. ? = 5 c. ? = 10 d. Cannot determine with the information given
According to Freud, the _____ is present at birth and is the source of bodily needs, wants, and desires.
A) ego B) id C) superego D) collective unconsciousness
Elaine is reinforced with a gold star for every math problem on her worksheet that she correctly completes. This is an example of
a. the partial reinforcement effect. b. a variable interval schedule. c. a fixed ratio schedule. d. continuous reinforcement.
Infants' repetition of certain syllables at the age of about 6 or 7 months is called
cooing. holophrasing. gurgling. babbling.