The very first "thinking" machines, used for calculations, were developed by ____.?

Approximately what percentage of deaths in the U.S. are the result of suicide?

a) .05% b) .50% c) 1.5% d) 3.0%

Two-year-old May Lin loves to play with her doll. She gives her doll a bottle, burps her, and changes her diaper just like her mother does for her baby brother

May Lin is quite satisfied to mother her doll and leave the care of her brother to her mother. According to Piaget, May Lin's ability to use a doll as a representation of a real baby illustrates that she is capable of a. operation. c. symbolic function. b. scheme. d. concept.