When 1-year-old babies in an experiment were placed on an ambiguous visual cliff and saw an expression of fear on their mothers' faces, what portion of them crossed the cliff?
a. all of them
b. about three-quarters of them
c. about one-third of them
d. none of them
D
You might also like to view...
The Oedipal conflict occurs during the ____ stage of development
a. ?anal b. ?genital c. ?phallic d. ?oral e. ?latency
Marriage is
a. a cherished but dying tradition. b. popular but appears to be under assault from changes in society. c. being largely replaced by cohabitation. d. has no meaning in today's society.
Which of the following is NOT a way that generativity can be expressed?
a. through productive or creative work b. by guiding one's own children or helping other children as a teacher or a coach c. as a concern for the welfare of others and society as a whole d. through a concern with one's own needs and comforts
A neuron's maximum rate of firing is theoretically about _________ action potentials per second
a. 200 b. 500 c. 1,000 d. 10,000