What did the lead researcher fail to do in the stanford prison experiment? a. he failed to acquire adequate permission from the university institutional review board. b. he failed to adequately separate his psychological duties from his experimental role. c. he failed to aggressively recruit subjects from a diverse enough population. d. he failed to properly advise subjects of their rights before the experiment began.
not c

What was piaget's explanation as to why preschool-age children in the preoperational stage make errors on tasks requiring conservation? a) preschool children's tendency toward centration prevents them from focusing on other relevant features of a situation b) preschool children have not yet developed numerical understanding; therefore, different amounts are meaningless c) preschool children's neural-visual network is not fully matured d) preschool children have not lived long enough and accrued enough experience to know the difference between quantities