You are watching your two nephews, ages 7 and 4, play with a ball of clay
Your older nephew is getting very frustrated because even though he is using the same ball of clay, his younger brother thinks that when it is a ball there is less of it than when he rolls it out into a longer shape. What Piagetian concept is your younger nephew lacking the ability to perform?
a. concept shifting
b. critical thinking
c. reversibility
d. decentering
C. The preoperational child cannot perform the mental operation of reversibility to confirm that the quantity has not changed even though the shape has.
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"Heredity" means
a. ?the biological transmission of traits and characteristics from one generation to another. b. how your traits manifest themselves in your characteristics. c. how cells divide to determine who we become. d. how genes combine to influence our phenotype.
According to Erikson, during the period of moratorium, adolescents
a. undergo an identity crisis when they examine their roles and make life decisions. b. experience a decrease in their egocentrism and become more aware of others' perspectives. c. gain in their understanding of metacognition and metamemory. d. make great advances in their understanding of theory of mind.
Some women with a single active ovary on one side and a single functioning fallopian tube on the other have been known to get pregnant
Indicate whether the statement is true or false
Twin studies indicate that heredity makes a substantial contribution to
a. schizophrenia. b. gender identity. c. obsessive-compulsive disorder. d. mate selection. e. hobbies.