The Greek word "schizo" means:

Rachel has found that when she opens the cupboard door to get the cat food, the cats come running to the kitchen. Rachel knows that this is classical conditioning and that the conditioned stimulus is the ______

a. cat food c. running of the cats b. cat d. cupboard door opening

One of the main reasons for using a laboratory for psychological research is to

a. prevent subjects from escaping. b. study behavior in a natural setting. c. do large-scale studies. d. allow the researchers to control certain factors.