When children in the concrete-operational stage are given hypothesis-testing problems to solve, they
a. reach correct solutions as efficiently as teenagers.
b. reach correct solutions but more slowly than teenagers.
c. test hypotheses but fail to isolate the effects of each variable.
d. get frustrated and quit the effort early.
C
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According to Piaget, which of the following is crucial to cognitive development at the sensorimotor stage?
a. egocentrism b. attachment c. language d. object permanence
When students were held as "prisoners" in the Stanford prison study, how did they respond during the first days of the experiment? Why did the researchers end the study at Day 6, instead of Day 14 as initially planned?
What will be an ideal response?
What are the genetic markers for females and males?
a. Females have two X chromosomes; males have one X and one Y chromosome. b. Females have two Y chromosomes; males have two X chromosomes. c. Females have one X and one Y chromosome; males have two Y chromosomes. d. Females have two Y chromosomes; males have one X and one Y chromosome.
When Wahchumyus first learns to play a new piece of music, he learns it note by note. This makes it hard to play because he has to keep looking at the score. After a while, he starts to put together several notes into musical phrases, so he is able to think of all the notes in that phrase as a single unit. This helps him keep more of the piece in his working memory. Wahchumyus is using a strategy
called A) decalage. B) chunking. C) seriation. D) transitive inference.