The feature that hallucinations in schizophrenia share in common is

A student has taken a summer job answering telephone calls for sales orders. He quickly learns that it is pretty easy to remember a customer's five-digit ZIP code and seven-digit phone number,

but it is much more difficult to keep track of a sixteen-digit credit card number. According to the conclusions of researcher George Miller, the student is having trouble with longer strings of numbers because a. the capacity of iconic memory is quite limited. b. memory span covers only five to nine items. c. memory span does not exist. d. the information is staying in his sensory memory.

Harlow's research demonstrated that if baby monkeys are separated from their mothers, they would likely gravitate toward ______

a. a picture of their mother b. an object that provides comfort c. an object that provides food d. nothing; the monkey would not know how to bond