Neurotransmitter molecules are released into the small space between two neurons called the

Which of the following is NOT a descriptive statistic?

A) alpha B) standard deviation C) median D) mean

How did Piaget explain why preschool-age children in the preoperational stage make errors on tasks requiring conservation?

A. Preschool-age children's neural-visual network is not fully matured. B. Preschool-age children have not lived long enough to accrue enough experience spotting the differences between quantities. C. Preschool-age children's tendency toward centration prevents them from focusing on other relevant features of a situation. D. Preschool-age children have not developed numerical understanding; therefore, different amounts are meaningless.