The year is 1900 and you are looking for a job in a psychology laboratory, somewhere in North America. Assuming that each laboratory has an opening, about how many laboratories will you have from which to choose?

Good _______ validity does not guarantee good _______

Fill in the blank(s) with the appropriate word(s).

In classical conditioning, any stimulus that naturally elicits a reflexive behavior is called a(n) ________ stimulus, and the behavior it elicits is called the ________ response

a. reflexive; orienting b. conditioned; unconditioned c. conditioned; conditioned d. unconditioned; unconditioned